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As filed with the Securities and Exchange Commission on April 28, 2000

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SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM N-4

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933

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and/or

REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940

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(Exact name of Registrant)

(Name of Depositor)

(Address of Depositor's Principal Executive Offices (Zip Code)

Depositor's Telephone Number, including Area Code: 617-526-1400

(Name and Address of Agent for Service)

copy to:

Joan E. Boros, Esq.

Jorden Burt Boros Cicchetti Berenson & Johnson LLP

1025 Thomas Jefferson Street, N.W.

Washington, DC 20007

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It is proposed that this filing will become effective:

( ) immediately upon filing pursuant to paragraph (b) of Rule 485

(X) on May 1, 2000 pursuant to paragraph (b) of Rule 485

( ) 60 days after filing pursuant to paragraph (a) of Rule 485

( ) on [date] pursuant to paragraph (a) of Rule 485

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Title of Securities Being Registered: Variable Portion of the Contracts Funded Through the Separate Account.

No filing fee is due because an indefinite amount of securities is deemed to have been registered in reliance on Section 24(f) of the Investment Company Act of 1940.

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Exhibit Index on Page ____

CONTENTS OF REGISTRATION STATEMENT

The Facing Sheet

The Contents Page

Cross-Reference Sheet

Prospectus

Statement of Additional Information

Items 24 - 32

The Signatures

Exhibits

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This Amendment No. 25 to the Registration Statement on Form N-4 which initially became effective on October 18, 1996 (the "Registration Statement") is being filed pursuant to Rule 485(a) under the Securities Act of 1933, as amended, to supplement the Registration Statement with a separate prospectus and statement of additional information ("SAI"), and related exhibits, describing a specific form of the Group and Individual Flexible Premium Deferred Annuity Contracts. This Amendment relates only to the prospectus, SAI and exhibits included in this Amendment and does not otherwise delete, amend, or supersede any information contained in Post-Effective Amendment Nos. 21, 23 and 24 to the Registration Statement.

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PART A

May 1, 2000 Prospectus for

This prospectus describes the Exeter variable annuity group Contracts and Certificates offered by Keyport Life Insurance Company. The prospectus also offers the Certificates in the form of Individual Contracts, where required by certain states. All discussion of Certificates applies to Contracts and Individual Contracts unless specified otherwise.

Under the Certificate, you may elect to have value accumulate on a variable basis. You may also elect to receive periodic annuity payments on either a variable or a fixed basis. This prospectus generally describes only the variable features of the Certificates. The Certificates are designed to help you in your retirement planning. You may purchase them on a tax qualified or non-tax qualified basis. Because they are offered on a flexible payment basis, you are permitted to make multiple payments (except in Oregon where they are offered only on a single purchase payment basis).

We will allocate your purchase payments to the investment options in the proportions you choose. The Certificate currently offers four investment options, each of which is a Sub-account of Variable Account A. Currently, you may choose among the Sub-accounts investing in the following Eligible Funds:

The Exeter Insurance Fund, Inc.: Exeter Moderate Growth Portfolio; and Exeter Growth Portfolio; Exeter Maximum Horizon Portfolio.

SteinRoe Variable Investment Trust: Stein Roe Money Market Fund, Variable Series.

You may not purchase a Certificate if either you or the Annuitant are 80 years old or older before we receive your application. You may not purchase a tax-qualified Certificate if you or the Annuitant are 75 years old or older before we receive your application (age 80 applies to Roth IRAs).

The purchase of a Contract or Certificate involves certain risks. Investment performance of the Sub-accounts to which you may allocate purchase payments may vary based on the performance of the related Eligible Funds. We do not guarantee any minimum Certificate Value for amounts allocated to the Sub-accounts.

The Variable Account may offer other certificates with different features, fees and charges, and other Sub-accounts which may invest in different or additional mutual funds. Separate prospectuses and statements of additional information will describe other certificates. The agent selling the Certificates has information concerning the eligibility for and availability of the other certificates.

This prospectus contains important information about the Contracts and Certificates you should know before investing. You should read it before investing and keep it for future reference. We have filed a Statement of Additional Information (" SAI") with the Securities and Exchange Commission. The current SAI has the same date as this prospectus and is incorporated by reference in this prospectus. You may obtain a free copy by writing us at 125 High Street, Boston, MA 02110, by calling (800) 437-4466; by writing Exeter Insurance Fund at P.O. Box 40610, Rochester, New York, 14604, or calling (800) 466-3863; or by returning the postcard on the back cover of this prospectus. A table of contents for the SAI appears on page 27 of this prospectus.

The date of this prospectus is May 1, 2000.

The Securities and Exchange Commission has not approved or disapproved these securities or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

Accumulation Unit: A unit of measurement which we use to calculate Variable Account Value.

Annuitant: The natural person on whose life annuity benefits are based and who will receive annuity payments starting on the Income Date.

Certificate Anniversary: Each anniversary of the Certificate Date.

Certificate Date: The date when the Certificate becomes effective.

Certificate Owner ("You"): The person(s) having the privileges of ownership defined in the Certificate.

Certificate Value: The Variable Account Value under your Certificate at any given time.

Certificate Withdrawal Value: The Certificate Value less any premium taxes and certificate maintenance charge.

Certificate Year: Each twelve-month period beginning on the Certificate Date and each Certificate Anniversary thereafter.

Company ("We", "Us", "Our", "Keyport"): Keyport Life Insurance Company.

Designated Beneficiary: The person designated to receive any death benefits under the Certificate.

Eligible Funds: The underlying mutual funds in which the Variable Account invests.

In Force: The status of the Certificate before the Income Date so long as it is not totally surrendered, the Certificate Value under a Certificate does not go to zero, and there has not been a death of the Annuitant or any Certificate Owner that will cause the Certificate to end within at most five years of the date of death.

Income Date: The date on which annuity payments are to begin.

Non-Qualified Certificate: Any Certificate that is not issued under a Qualified Plan.

Qualified Certificate: Certificates issued under Qualified Plans.

Qualified Plan: A retirement plan which receives special tax treatment under Section 408(b) or 408A of the Internal Revenue Code ("Code").

Variable Account: Variable Account A which is a separate investment account of the Company into which purchase payments under the Certificates may be allocated. The Variable Account is divided into Sub-accounts which invest in shares of an Eligible Fund.

Variable Account Value: The value of all Variable Account amounts accumulated under the Certificate prior to the Income Date.

Written Request: A request written on a form satisfactory to us, signed by you and a disinterested witness, and filed at our office.

Because this is a summary, it does not contain all of the information that may be important to you. You should read the entire prospectus and Statement of Additional Information before deciding to invest. Further, individual state requirements, which are different from the information in this prospectus, are described in supplements to this prospectus or in endorsements to the Certificates.

The Certificate is a flexible premium deferred variable annuity certificate. It is designed for retirement planning purposes. It allows you to allocate purchase payments to and receive annuity payments from the Variable Account.

The Variable Account is a separate investment account we maintain. If you allocate payments to the Variable Account, your accumulation values and annuity payments will fluctuate according to the investment performance of the Eligible Funds chosen.

You may (except in Oregon) make multiple purchase payments. The minimum initial payment is $5,000. For individual retirement annuities the minimum payment is $2,000. The minimum amount for each subsequent payment is $1,000 or a lesser amount as we may permit from time to time which is currently $1,000. (See "Purchase Payments and Applications.")

You can allocate and reallocate your investment among the Sub-accounts of the Variable Account which in turn invest in the Eligible Funds. Each Eligible Fund holds its assets separately from the assets of the other Eligible Funds. Each has its own investment objectives and policies described in the prospectuses for the Eligible Funds. Under the Certificate, the Variable Account currently invests in the following:

Exeter Insurance Fund Inc. ("Exeter Insurance Fund")

SteinRoe Variable Investment Trust ("SteinRoe Trust")

We deduct a mortality and expense risk charge at an annual rate of .35% of your average daily net asset value in the Variable Account. (See "Deductions for Mortality and Expense Risk Charge.")

We deduct an annual $35 certificate maintenance charge from Variable Account Value for administrative expenses. Prior to the Income Date, we reserve the right to change this charge for future years. In certain instances, we may waive this charge. (See "Deductions for Certificate Maintenance Charge.")

Currently, there is no transfer charge. However, the Certificate permits us to charge you up to $25 for each transfer in excess of 12 in each year your Certificate is In Force.

We charge premium taxes against your Certificate Value. Currently such premium taxes range from 0% to 5.0%. (See "Deductions for Premium Taxes.")

You will not pay federal income taxes on the increases in the value of your Certificate. However, if you make a withdrawal, in the form of a lump sum payment, annuity payment, or make a gift or assignment you will be subject to federal income taxes on the increases in the value of your Certificate and may also be subject to a 10% federal penalty tax. (See "Tax Status.")

Generally, you may revoke the Certificate by returning it to us within 10 days after you receive it. For most states, we will refund your Certificate Value, plus any distribution charges previously deducted, as of the date we receive the returned Certificate. You will bear the investment risk during the revocation period. In other states, we will return purchase payments. You may ask us for the rules that apply to your state.

(See "Right to Revoke.")

Variable Account Annual Expenses

(as a percentage of average net assets)

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THE ABOVE EXPENSES FOR THE ELIGIBLE FUNDS WERE PROVIDED BY THE FUNDS. WE HAVE NOT INDEPENDENTLY VERIFIED THE ACCURACY OF THE INFORMATION.

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The example assumes you did not make any transfers. We reserve the right to impose a transfer fee after we notify you. Currently, we do not impose any transfer fee. Premium taxes are not shown. We deduct the amount of any premium taxes (which range from 0% to 5%) from Certificate Value when they are paid.

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The fee table and example should not be considered a representation of past or future expenses and charges of the Sub-accounts. Your actual expenses may be greater or less than those shown. Similarly, the 5% annual rate of return assumed in the example is not an estimate or a guarantee of future investment performance. See "Deductions" in this prospectus "Management" in the prospectus for Exeter Insurance Fund, and "How the Funds are Managed" in the prospectus for SteinRoe Trust.

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* Accumulation Unit Values are rounded to the nearest tenth of a cent and numbers of accumulation units are rounded to the nearest whole number.

** Each $10.000 value is as of November 4, 1996, which is the date the Eligible Fund Sub-account first became available.

The full financial statements for the Variable Account and Keyport are in the Statement of Additional Information.

The Variable Account may from time to time advertise certain performance information concerning its various Sub-accounts.

Performance information is not an indicator of either past or future performance of a Certificate.

The Sub-accounts may advertise total return information for various periods of time. Total return performance information is based on the overall percentage change in value of a hypothetical investment in the Sub-account over a given period of time.

Average annual total return information shows the average annual compounding percentage applied to the value of an investment in the Sub-account from the beginning of the measuring period to the end of that period. This average annual total return reflects all historical investment results, less all Sub-account and Certificate charges and deductions. Average total return is not reduced by any premium taxes. Average total return would be less if these taxes were deducted.

In order to calculate average annual total return, we divide the change in value of a Sub-account under a Certificate surrendered on a particular date by a hypothetical $1,000 investment in the Sub-account. We then annualize the resulting total rate for the period to obtain the average annual compounding percentage change during the period.

The Sub-accounts may present additional total return information computed on a different basis:

The Sub-accounts may present total return information as described above except there are no Certificate deductions for the certificate maintenance charge and premium taxes. Because there are no charges deducted, the calculation is simplified. We divide the change in a Sub-account's Accumulation Unit value over a specified time period by the Accumulation Unit value of that Sub-account at the beginning of the period. This computation results in a twelve-month change rate. For longer periods it is a total rate for the period. We annualize the total rate in order to obtain the average annual percentage change in the Accumulation Unit value. The percentages would be lower if these charges were included.

The SRMMF Sub-account is a money market Sub-account that also may advertise yield and effective yield information. The yield of the Sub-account refers to the income generated by an investment in the Sub-account over a specifically identified seven-day period. We annualize this income by assuming that the amount of income generated by the investment during that week is generated each week over a fifty-two week period and is shown as a percentage. The yield reflects the deduction of all charges assessed against the Sub-account and a Certificate but does not take into account premium tax charges. The yield would be lower if these charges were included.

We calculate the effective yield of the SRMMF Sub-account in a similar manner but, when annualizing the yield, we assume income earned by the Sub-account is reinvested. This compounding effect causes effective yield to be higher than yield.

We were incorporated in Rhode Island in 1957 as a stock life insurance company. Our executive and administrative offices are at 125 High Street, Boston, Massachusetts 02110. Our home office is at 695 George Washington Highway, Lincoln, Rhode Island 02865.

We write individual life insurance and individual and group annuity contracts that are "non-participating". That is, we do not pay dividends or benefits based on our financial performance. We are licensed to do business in all states except New York and are also licensed in the District of Columbia and the Virgin Islands. We are rated A (Excellent) by A.M. Best and Company, independent analysts of the insurance industry. Standard & Poor's ("S&P") rates us AA- for very strong financial security, Moody's rates us A2 for good financial strength and Duff & Phelps rates us AA for very high claims paying ability. The Best's A rating is in the second highest rating category, which also includes a lower rating of A-. S&P and Duff & Phelps have one rating category above AA and Moody's has two rating categories above A. The Moody's "2" modifier means that we are in the middle of the A category. The S&P and Duff & Phelps "-" modifier signifies that we are at the lower end of the AA category. These ratings reflect the opinion of the rating company as to our relative financial strength and ability to meet contractual obligations to our policyholders. Even though we hold the assets in the Variable Account separately from our other assets, our ratings may still be relevant to you since not all of our contractual obligations relate to payments based on those segregated assets.

We are indirectly owned by Liberty Financial Companies, Inc. and are ultimately controlled by Liberty Mutual Insurance Company of Boston, Massachusetts, a multi-line insurance and financial services institution.

We established the Variable Account pursuant to the provisions of Rhode Island Law on January 30, 1996. The Variable Account meets the definition of "separate account" under the federal securities laws. The Variable Account is registered with the Securities and Exchange Commission as a unit investment trust under the Investment Company Act of 1940. Such registration does not mean the Securities and Exchange Commission supervises us or the management of the Variable Account.

Obligations under the Certificates are our obligations. Although the assets of the Variable Account are our property, these assets are held separately from our other assets and are not chargeable with liabilities arising out of any other business we may conduct. Income, capital gains and/or capital losses, whether or not realized, from assets allocated to the Variable Account are credited to or charged against the Variable Account without regard to the income, capital gains, and/or capital losses arising out of any other business we may conduct.

The initial purchase payment is due on the Certificate Date. The minimum initial purchase payment is $5,000, and $2,000 for individual retirement annuities. You may make additional purchase payments. Each subsequent purchase payment must be at least $1,000 or any lesser amount we may permit. We may reject any purchase payment or any application.

If your application for a Certificate is complete and amounts are to be allocated to the Variable Account, we will apply your initial purchase payment to the Variable Account within two business days of receipt. If the application is incomplete, we will notify you and try to complete it within five business days. If it is not complete at the end of this period, we will inform you of the reason for the delay. The purchase payment will be returned immediately unless you specifically consent to our keeping the purchase payment until the application is complete. Once the application is complete, the purchase payment will be applied within two business days of its completion.

We will send you a written notification showing the allocation of all purchase payments and the re-allocation of values after any transfer you have requested. You must notify us immediately of any error.

We will permit others to act on your behalf in certain instances, including:

Certain dealers or other authorized persons such as employers and Qualified Plan fiduciaries may inform us of your responses to application questions by telephone or by order ticket and cause the initial purchase payment to be paid to us. If the information is complete, we will issue the Certificate with a copy of an application containing that information. We will send you the Certificate and a letter so you may review the information and notify us of any errors. We may request you to confirm that the information is correct by signing a copy of the application or a Certificate delivery receipt. We will send you a written notice confirming all purchases. Our liability under any Certificate is only to amounts so confirmed.

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We will invest the purchase payments you applied to the Variable Account in the Eligible Fund Sub-accounts chosen by you. Your selection must specify the percentage of the purchase payment that is allocated to each Sub-account. The percentage for each Sub-account, if not zero, must be at least 5% and a whole number. You may change the allocation percentages without fee, penalty or other charge. You must notify us in writing of your allocation changes unless you, your attorney-in-fact, or another authorized person have given us written authorization to accept telephone allocation instructions. By allowing us to accept telephone changes, you agree to accept and be bound by our current conditions and procedures. The current conditions and procedures are in Appendix A. We will notify you of any changes in advance.

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The Variable Account is segmented into Sub-accounts. Each Sub-account contains the shares of one of the Eligible Funds and such shares are purchased at net asset value. We may add or withdraw Eligible Funds and Sub-accounts as permitted by applicable law.

The Eligible Funds are the separate funds listed within Exeter Insurance Fund and the SteinRoe Trust. Keyport and the Variable Account may enter into agreements with other mutual funds for the purpose of making such mutual funds available as Eligible Funds under certain Certificates.

We do not promise that the Eligible Funds will meet their investment objectives. Amounts you have allocated to Sub-accounts may grow, decline, or grow less in value than you expect, depending on the investment performance of the Sub-accounts in which the Eligible Funds invest. You bear the investment risk that those Sub-accounts possibly will not meet their investment objectives. You should carefully review their prospectuses before allocating amounts to the Sub-accounts of the Variable Account.

Exeter Advisors, Inc. ("Exeter Advisors"), a division of Manning & Napier Advisors, Inc., acts as Exeter Insurance Fund's investment adviser. Exeter Advisors also is generally responsible for supervision of the overall business affairs of Exeter Insurance Fund, including supervision of service providers to the Fund and direction of Exeter Advisors' directors, officers or employees who may be elected as officers of Exeter Insurance Fund to serve as such.

Stein Roe & Farnham Incorporated ("Stein Roe"), an affiliate is the investment adviser for the Eligible Fund of SteinRoe Trust.

We have briefly described the Eligible Funds below. You should read the current prospectuses for the Eligible Funds for more details and complete information. The prospectuses are available, at no charge, from a salesperson or by writing to us or by calling (800) 437-4466. The prospectus may also be obtained by writing Exeter Insurance Fund, Inc. at P.O. Box 40610, Rochester, New York 14604, or calling (800) 466-3863.

You may transfer Variable Account Value from one Sub-account to another Sub-account.

We may charge a transfer fee and limit the number of transfers that you can make in a time period. Transfer limitations may prevent you from making a transfer on the date you select. This may result in your Certificate Value being lower than it would have been if you had been able to make the transfer.

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Currently, we do not charge a transfer fee. We reserve the right to charge a fee in excess of 12 in each Certificate Year. We will notify you prior to charging any transfer fee or a change in the limitation on the number of transfers. The fee will not exceed $25.

Currently, we do not limit the number or frequency of transfers except as follows:

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If we have executed a transfer with respect to your Certificate as part of a multiple transfer request, we will not execute another transfer request for your Certificate for thirty days.

By applying these limitations we intend to protect the interests of individuals who do and those who do not engage in significant transfer activity among Sub-accounts. We have determined that the actions of individuals engaging in significant transfer activity may cause an adverse affect on the performance of the Eligible Fund for the Sub-account involved. The movement of values from one Sub-account to another may prevent the appropriate Eligible Fund from taking advantage of investment opportunities because the Eligible Fund must maintain a liquid position in order to handle redemptions. Such movement may also cause a substantial increase in fund transaction costs which all Certificate Owners must indirectly bear.

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You must notify us in writing of your transfer requests unless you have given us written authorization to accept telephone transfer requests from you or your attorney-in-fact. By authorizing us to accept telephone transfer instructions, you agree to accept and be bound by our current conditions and procedures. The current conditions and procedures are in Appendix A. You will be given prior notification of any changes. A person acting on your behalf as an attorney-in-fact may make written transfer requests.

If we receive your transfer requests before 4:00 P.M. Eastern Time, we will initiate them at the close of business that day. We will initiate any requests received after that time at the close of the next business day. We will execute your request to transfer value by both redeeming and acquiring Accumulation Units on the day we initiate the transfer.

If you transfer 100% of any Sub-account's value, and the allocation formula for purchase payments on your application includes that Sub-account, the allocation formula for future purchase payments will automatically change unless you tell us otherwise.

If shares of any of the Eligible Funds are no longer available for investment by the Variable Account, or further investment in the shares of an Eligible Fund is no longer appropriate under the Certificate, we may add or substitute shares of another Eligible Fund or of another mutual fund for Eligible Fund shares already purchased or to be purchased in the future. Any substitution of securities will comply with the requirements of the Investment Company Act of 1940.

We also reserve the right to make the following changes in the operation of the Variable Account and Eligible Funds:

We charge an annual certificate maintenance charge of $35 per Certificate Year. Before the Income Date we do not guarantee the amount of the certificate maintenance charge and may change it. This charge reimburses us for our expenses incurred in maintaining your Certificate.

On the Income Date, we will subtract a pro-rata portion of the charge due on the next Certificate Anniversary from the Variable Account Value. This pro-rata charge covers the period from the prior Certificate Anniversary to the Income Date. We will deduct the charge proportionally from each Sub-account based upon the value each Sub-account bears to the Variable Account Value.

Once annuity payments begin, the certificate maintenance charge is guaranteed not to increase. We will subtract this charge in equal parts from each annuity payment. For example, if annuity payments are monthly, then we will deduct one-twelfth of the annual charge from each payment.

The Certificate allows us to charge a transfer fee. Currently, we do not charge such a fee. We will notify you prior to the imposition of any fee and the fee will not exceed $25.

We deduct the amount of any premium taxes required by any state or governmental entity. We deduct premium taxes from Certificate Value when they are paid. The actual amount of any such premium taxes will depend, among other things, on the type of Certificate you purchase (Qualified or Non-Qualified), on your state of residence, the state of residence of the Annuitant, and the insurance tax laws of such states. Currently such premium taxes range from 0% to 5.0% of either total purchase payments or Certificate Value.

We will deduct income taxes from any amount payable under the Certificate that a governmental authority requires us to withhold. See "Income Tax Withholding".

Total Variable Account expenses you will incur will be the certificate maintenance charge and the mortality and expense risk charge.

The value of the assets in the Variable Account will reflect the value of Eligible Fund shares and the deductions and expenses paid out of the assets of the Eligible Funds. The prospectus for the Eligible Fund describes these deductions and expenses.

The Program. We offer the following investment related program which is available only prior to the Income Date:

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This program has its own requirements, as discussed below. We reserve the right to terminate the program and you may terminate your participation in the program at any time.

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If you have submitted a telephone authorization form, you may make certain changes by telephone. We describe the current conditions and procedures in Appendix A.

Systematic Withdrawal Program. To the extent permitted by law, if you enroll in the systematic withdrawal program, we will make monthly, quarterly, semi-annual or annual distributions of a set dollar amount directly to you. We will treat such distributions for federal tax purposes as any other withdrawal or distribution of Certificate Value. You may specify the amount of each partial withdrawal, subject to a minimum of $100. You may make systematic withdrawals from any Sub-accounts.

Unless you specify the Sub-account(s) from which you want withdrawals of Certificate Value made, or if the amount in a specified Sub-account is less than the predetermined amount, we will make withdrawals under the program in the manner specified for partial withdrawals in "Partial Withdrawals and Surrender." We will process all Sub-account withdrawals under the program by canceling Accumulation Units equal in value to the amount to be distributed to you.

The Variable Account Value for your Certificate is based on the sum of your proportionate interest in the value of each Sub-account to which you have allocated values. We determine the value of each Sub-account at any time by multiplying the number of Accumulation Units attributable to that Sub-account by its Accumulation Unit value.

Each purchase payment you make results in the credit of additional Accumulation Units to your Certificate and the appropriate Sub-account. Purchase payments are credited to your Certificate using the Accumulation Unit value that is next calculated after we receive your purchase payment. The number of additional units for any Sub-account will equal the amount allocated to that Sub-account divided by the Accumulation Unit value for that Sub-account at the time of investment.

We determine the value of the Variable Account each valuation period using the net asset value of the Eligible Fund shares. A valuation period is the period beginning at 4:00 P.M.(ET) which is the close of trading on the New York Stock Exchange and ending at the close of trading for the next business day. The New York Stock Exchange is currently closed on weekends, New Year's Day, Martin Luther King, Jr. Day, Presidents' Day, Good Friday,

Memorial Day, Independence Day, Labor Day, Thanksgiving Day and Christmas

Day.

Your Variable Account Value will fluctuate with the investment results of the underlying Eligible Funds you have selected. In order to determine how these fluctuations affect value, we use an Accumulation Unit value. Each Sub-account has its own Accumulation Units and value per unit. We determine the unit value applicable during any valuation period at the end of that period.

When we first purchased Eligible Fund shares on behalf of the Variable Account, we valued each Accumulation Unit at a specified dollar amount. The Unit value for each Sub-account in any valuation period thereafter is determined by multiplying the value for the prior period by a net investment factor. This factor may be greater or less than 1.0; therefore, the Accumulation Unit may increase or decrease from valuation period to valuation period. We calculate a net investment factor for each Sub-account according to the following formula (a / b) - c, where:

Only our President or Secretary may agree to alter the Certificate or waive any of its terms. A change may be made to the Certificate if there have been changes in applicable law or interpretation of law. Any changes will be made in writing and with your consent, except as may be required by applicable law.

You may return the Certificate within 10 days after you receive it by delivering or mailing it to us or Exeter Insurance Fund, Inc., P.O. Box 40610, Rochester, New York, 14604. The postmark on a properly addressed and postage-prepaid envelope determines if a Certificate is returned within the period. We will treat the returned Certificate as if we never issued it and will refund either the Certificate Value or purchase payments, whichever is required by state law.

If we deliver your Certificate to you in California and you are age 60 or older, you may return the Certificate to us, Exeter Insurance Fund's office, or to the agent from whom you purchased it. If you return the Certificate within 30 days after you receive it, we will refund the Certificate Value.

Death of Primary Owner, Joint Owner or Certain Non-Owner Annuitant. If while the Certificate is In Force, you or any Joint Certificate Owner dies, or if the Annuitant dies when a non-natural person (such as a trust) owns the Certificate, we will treat the Designated Beneficiary as the Certificate Owner after such a death.

The Covered Person under this paragraph shall be the decedent if he or she is the first to die among you, any joint Certificate Owner or Annuitant. If there is a non-natural Certificate Owner such as a trust, the Annuitant shall be the Covered Person.

We allocate the amount credited, if any, to the Variable Account based on the purchase payment allocation selection in effect when we receive due proof of death. If the Designated Beneficiary does not surrender the Certificate, it will continue for the time period specified above.

Payment of Benefits. Instead of receiving a lump sum, you or any Designated Beneficiary may direct us in writing to pay any benefit of $5,000 or more under an annuity payment option that meets the following:

Death of Certain Non-Certificate Owner Annuitant. These provisions apply if, while the Certificate is In Force, the Annuitant dies, the Annuitant is not the Certificate Owner, or joint Certificate Owner and the Certificate Owner is a natural person. The Certificate will continue after the Annuitant's death. The new Annuitant will be any living contingent annuitant. If there is no contingent annuitant, you will be the new Annuitant. If the Annuitant dies before you and any joint Certificate Owner, then the Annuitant is the Covered Person and we will increase the Certificate Value, as provided below, if it is less than the DBA, as defined above.

When we receive due proof of the Annuitant's death, we will compare, as of the date of death, the Certificate Value and the DBA. If the Certificate Value is less than the DBA, we will increase the Certificate Value by the difference. Note that while the amount of the difference is determined as of the date of death, that amount is not added to the Certificate Value until we receive due proof of death. We allocate the amount credited, if any, to the Variable Account based on the purchase payment allocation selection in effect when we receive due proof of death.

Death of Annuitant. If the Annuitant dies while the Certificate is In Force, the Designated Beneficiary will control the Certificate. We will increase the Certificate Value, as provided below, if it is less than the DBA as defined above. When we receive due proof of the Annuitant's death, we will compare, as of the date of death, the Certificate Value to the DBA. If the Certificate Value was less than the DBA, we will increase the current Certificate Value by the amount of the difference. Note that while the amount of the difference is determined as of the date of death, that amount is not added to the Certificate Value until we receive due proof of death. We will allocate the amount credited, if any, to the Variable Account based on the purchase payment allocation selection in effect when we receive due proof of death.

If the Designated Beneficiary does not surrender the Certificate, it may continue for the time period permitted by the Internal Revenue Code provisions applicable to the particular Qualified Plan. During this period, the Designated Beneficiary may exercise all ownership rights, including the right to make transfers or partial withdrawals or the right to totally surrender the Certificate for its Certificate Withdrawal Value. If the Certificate is still in effect at the end of the period, we will automatically end it then by paying the Certificate Withdrawal Value to the Designated Beneficiary. If the Designated Beneficiary is not alive then, we will pay any person(s) named by the Designated Beneficiary in writing; otherwise we will pay the Designated Beneficiary's estate.

Payment of Benefits. You or any Designated Beneficiary may direct us in writing to pay any benefit of $5,000 or more under an annuity payment option that meets the following:

The Certificate Owner shall be the person designated in the application and you may exercise all the rights of the Certificate. Joint Certificate Owners are permitted. Contingent Certificate Owners are not permitted.

You may direct us in writing to change the Certificate Owner, primary beneficiary, contingent beneficiary or contingent annuitant. An irrevocably-named person may be changed only with the written consent of that person.

Because a change of Certificate Owner by means of a gift may be a taxable event, you should consult a competent tax adviser as to the tax consequences resulting from such a transfer.

Any Qualified Certificate may have limitations on transfer of ownership. You should consult the plan administrator and a competent tax adviser as to the tax consequences resulting from such a transfer.

You may assign the Certificate at any time. You must file a copy of any assignment with us. Your rights and those of any revocably-named person will be subject to the assignment. A Qualified Certificate may have limitations on your ability to assign the Certificate.

Because an assignment may be a taxable event, you should consult a competent tax adviser as to the tax consequences resulting from any such assignment.

You may make partial withdrawals from the Certificate by notifying us in writing. The minimum withdrawal amount is $300. We may permit a lesser amount with the systematic withdrawal program. If the Certificate Value after a partial withdrawal would be below $2,500, we will treat the request as a withdrawal of only the amount over $2,500. Unless you specify otherwise, we will deduct the total amount withdrawn from all Sub-accounts of the Variable Account in the ratio that the value in each Sub-account bears to the total Variable Account Value.

You may totally surrender the Certificate by notifying us in writing. Surrendering the Certificate will end it. Upon surrender, you will receive the Certificate Withdrawal Value.

We will pay the amount of any surrender within seven days of receipt of your request. Alternatively, you may purchase for yourself an annuity payment option with any surrender benefit of at least $5,000. If the Certificate Owner is not a natural person, we must consent to the selection of an annuity payment option.

You may not surrender annuity options based on life contingencies after annuity payments have begun. You may surrender Option A, described in "Annuity Options" below, which is not based on life contingencies, if you have selected a variable payout.

Because of the potential tax consequences of a partial withdrawal or surrender, you should consult a competent tax adviser.

If the Annuitant is alive on the Income Date and the Certificate is In Force, we will begin payments under the annuity option or options you have chosen. We determine the amount of the payments on the Income Date by: applying the payments to the option you choose for your Certificate Value and subtracting any premium taxes not previously deducted and any applicable certificate maintenance charge.

You may select an Annuity Option and Income Date at the time of application. If you do not select an Annuity Option, we will automatically choose Option B. If you do not select an Income Date for the Annuitant, the Income Date will automatically be the earlier of:

You may continue to make purchase payments until you reach your Income Date.

You may choose or change an Annuity Option or the Income Date by writing us at least 30 days before the Income Date. However, any Income Date must be:

The Annuity Options are:

Option A: Income for a Fixed Number of Years;

Option B: Life Income with 10 Years of Payments Guaranteed; and

Option C: Joint and Last Survivor Income.

You may arrange other options if we agree. Each option is available in two forms -- as a variable annuity for use with the Variable Account and as a fixed annuity for use with our general account. Variable annuity payments will fluctuate. Fixed annuity payments will not fluctuate. We will determine the dollar amount of each fixed annuity payment by:

We may base this current factor on the sex of the payee unless we are prohibited by law from doing so.

If you do not select an Annuity Option we will automatically apply Option B. Unless you choose otherwise, we will apply Variable Account Value, (less any premium taxes not previously deducted and less any applicable certificate maintenance charge) to a variable annuity option. The same amount applied to a variable option and a fixed option will produce a different initial annuity payment and different subsequent payments.

The payee is the person who will receive the sum payable under a payment option. Any payment option that provides for payments to continue after the death of the payee will not allow the successor payee to extend the period of time over which the remaining payments are to be made.

If the amount available under any variable or fixed option is less than $5,000, we reserve the right to pay such amount in one sum to the payee in lieu of the payment otherwise provided for.

We will make annuity payments monthly unless you have requested in writing quarterly, semi-annual or annual payments. However, if any payment would be less than $100, we have the right to reduce the frequency of payments to a period that will result in each payment being at least $100.

Option A: Income For a Fixed Number of Years. We will pay an annuity for a chosen number of years, not less than 5 nor more than 50. You may choose a period of years over 30 only if it does not exceed the difference between age 100 and the Annuitant's age on the date of the first payment. We refer to Option A as Preferred Income Plan (PIP). At any time while we are making variable annuity payments, the payee may elect to receive the following amount: the present value of the remaining payments, commuted at the interest rate used to create the annuity factor for this option (for the variable annuity this interest rate is 6% per year (5% per year for Oregon and Texas Certificates), unless at the time you chose Option A you selected 3% per year in writing). Instead of receiving a lump sum, the payee may elect another payment option.

If, at the death of the payee, Option A payments have been made for fewer than the chosen number of years:

The mortality and expense risk charge is deducted during the Option A payment period if a variable payout has been selected, but we have no mortality risk during this period.

You may choose a "level monthly" payment option for variable payments under Option A. Under this option, we convert your annual payment into twelve equal monthly payments. Thus the monthly payment amount changes annually instead of monthly. We will determine each annual payment as described below in "Variable Annuity Payment Values", place each annual payment in our general account, and distribute it in twelve equal monthly payments. The sum of the twelve monthly payments will exceed the annual payment amount because of an interest rate factor we use, which will vary from year to year. If the payments are commuted, (1) we will use the commutation method described above for calculating the present value of remaining annual payments and (2) use the interest rate that determined the current twelve monthly payments to commute any unpaid monthly payments.

See "Annuity Payments" for the manner in which Option A may be taxed.

Option B: Life Income with 10 Years of Payments Guaranteed. We will pay an annuity during the lifetime of the payee. If, at the death of the payee, payments have been made for fewer than 10 years:

The amount of the annuity payments will depend on the age of the payee on the Income Date and it may also depend on the payee's sex.

Option C: Joint and Last Survivor Income. We will pay an annuity for as long as either the payee or a designated second natural person is alive. The amount of the annuity payments will depend on the age of both persons on the Income Date and it may also depend on each person's sex. It is possible under this option to receive only one annuity payment if both payees die after the receipt of the first payment or to receive only two annuity payments if both payees die after receipt of the second payment and so on.

We determine the amount of the first variable annuity payment by using an annuity purchase rate based on an assumed annual investment return of 6% per year (5% per year for Oregon and Texas Certificates), unless you choose 3% in writing. Subsequent variable annuity payments will fluctuate in amount and reflect whether the actual investment return of the selected Sub-account(s) (after deducting the mortality and expense risk charge) is better or worse than the assumed investment return. The total dollar amount of each variable annuity payment will be equal to:

Currently, there is no limit on the number of times or the frequency with which a payee may instruct us to change the Sub-account(s) used to determine the amount of the variable annuity payments.

We may require proof of age, sex or survival of any payee upon whose age, sex or survival payments depend. If the age or sex has been misstated, we will compute the amount payable based on the correct age and sex. If income payments have begun, we will pay in full any underpayments with the next annuity payment and deduct any overpayments, unless repaid in one sum, from future annuity payments until we are repaid in full.

We reserve the right to suspend or postpone any type of payment from the Variable Account for any period when:

The applicable rules and regulations of the Securities and Exchange Commission shall govern as to whether the prior two conditions described above exist.

This discussion is general in nature and is not intended as tax advice. Each person concerned should consult a competent tax adviser. We make no attempt to consider any applicable state or other tax laws. Moreover, this discussion is based upon our understanding of current federal income tax laws as they are currently interpreted. We make no representation regarding the likelihood of continuation of those current federal income tax laws or of the current interpretations by the Internal Revenue Service.

The Certificate is for use by individuals in retirement plans which may or may not be Qualified Plans under the provisions of the Internal Revenue Code (the "Code"). The ultimate effect of federal income taxes on the Certificate Value, on annuity payments, and on the economic benefit to the Certificate Owner, Annuitant or Designated Beneficiary depends on the type of retirement plan for which you purchase the Certificate and upon the tax and employment status of the individual concerned.

Section 72 of the Code governs taxation of annuities in general. There are no income taxes on increases in the value of a Certificate until a distribution occurs, in the form of a full surrender, a partial withdrawal, an assignment or gift of the Certificate, or annuity payments. A trust or other entity owning a Non-Qualified Certificate, other than as an agent for an individual, is taxed differently; increases in the value of a Certificate are taxed yearly whether or not a distribution occurs.

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Surrenders, Death Benefit Payments, Assignments and Gifts. If you fully surrender your Certificate, the portion of the payment that exceeds your cost basis in the Certificate is subject to tax as ordinary income. For Non-Qualified Certificates, the cost basis is generally the amount of the purchase payments made for the Certificate. For Qualified Certificates, the cost basis is generally zero and the taxable portion of the surrender payment is generally taxed as ordinary income. A Designated Beneficiary receiving a lump sum death benefit payment after your death or the death of the Annuitant is similarly taxed on the portion of the amount that exceeds your cost basis in the Certificate. If the Designated Beneficiary elects to receive annuity payments that begin within one year of the decedent's death, different tax rules apply. See "Annuity Payments" below. For Non-Qualified Certificates, the tax treatment applicable to Designated Beneficiaries may be contrasted with the income-tax-free treatment applicable to persons inheriting and then selling mutual fund shares with a date-of-death value in excess of their basis.

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Partial withdrawals received under Non-Qualified Certificates prior to annuitization are first included in gross income to the extent Certificate Value exceeds purchase payments. Then, to the extent the Certificate Value does not exceed purchase payments, such withdrawals are treated as a non-taxable return of principal to you. For partial withdrawals under a Qualified Certificate, payments are treated first as a non-taxable return of principal up to the cost basis and then a taxable return of income. Since the cost basis of Qualified Certificates is generally zero, partial withdrawal amounts will generally be fully taxed as ordinary income.

If you assign or pledge a Non-Qualified Certificate, you will be treated as if you had received the amount assigned or pledged. You will be subject to taxation under the rules applicable to partial withdrawals or surrenders. If you give away your Certificate to anyone other than your spouse, you are treated for income tax purposes as if you had fully surrendered the Certificate.

A special computational rule applies if we issue to you, during any calendar year, two or more Certificates, or one or more Certificates and one or more of our other annuity contracts. Under this rule, the amount of any distribution includable in your gross income is determined under Section 72(e) of the Code. All of the contracts will be treated as one contract. We believe this means the amount of any distribution under any one Certificate will be includable in gross income to the extent that at the time of distribution the sum of the values for all the Certificates or contracts exceeds the sum of each contract's cost basis.

Annuity Payments. We determine the non-taxable portion of each variable annuity payment by dividing the cost basis of your values by the total number of expected payments. We determine the non-taxable portion of each fixed annuity payment with an "exclusion ratio" formula which establishes the ratio that the cost basis of your values allocated to fixed payments bears to the total expected value of annuity payments for the term of the annuity. The remaining portion of each payment is taxable. Such taxable portion is taxed at ordinary income rates. For Qualified Certificates, the cost basis is generally zero. With annuity payments based on life contingencies, the payments will become fully taxable once the payee lives longer than the life expectancy used to calculate the non-taxable portion of the prior payments. Because variable annuity payments can increase over time and because certain payment options provide for a lump sum right of commutation, it is possible that the IRS could determine that variable annuity payments should not be taxed as described above but instead should be taxed as if they were received under an agreement to pay interest. This determination would result in a higher amount (up to 100%) of certain payments being taxable.

With respect to the "level monthly" payment option available under Annuity Option A, pursuant to which each annual payment is placed in our general account and paid out with interest in twelve equal monthly payments, it is possible the IRS could determine that receipt of the first monthly payout of each annual payment is constructive receipt of the entire annual payment. Thus, the total taxable amount for each annual payment would be accelerated to the time of the first monthly payout and reported in the tax year in which the first monthly payout is received.

Penalty Tax. Payments received by you, Annuitants, and Designated Beneficiaries under Certificates may be subject to both ordinary income taxes and a penalty tax equal to 10% of the amount received that is includable in income. The penalty tax is not imposed on the following amounts received:

Income Tax Withholding. We are required to withhold federal income taxes on taxable amounts paid under Certificates unless the recipient elects not to have withholding apply. We will notify recipients of their right to elect not to have withholding apply.

Section 1035 Exchanges. You may purchase a Non-Qualified Certificate with proceeds from the surrender of an existing annuity contract. Such a transaction may qualify as a tax-free exchange pursuant to Section 1035 of the Code. It is our understanding that in such an event:

We base our understanding of the above principally on legislative reports prepared by the Staff of the Congressional Joint Committee on Taxation.

Diversification Standards. The U.S. Secretary of the Treasury has issued regulations that set standards for diversification of the investments underlying variable annuity contracts (other than pension plan contracts). The Eligible Funds intend to meet the diversification requirements for the Certificate as those requirements may change from time to time. If the diversification requirements are not satisfied, the Certificate will not be treated as an annuity contract. As a consequence, income earned on a Certificate would be taxable to you in the year in which diversification requirements were not satisfied, including previously non-taxable income earned in prior years. As a further consequence, we would be subjected to federal income taxes on assets in the Variable Account.

The Secretary of the Treasury announced in September 1986 that he expects to issue regulations which will prescribe the circumstances in which your control of the investments of a segregated asset account may cause you, rather than us, to be treated as the owner of the assets of the account. The regulations could impose requirements that are not reflected in the Certificate. We, however, have reserved certain rights to alter the Certificate and investment alternatives so as to comply with such regulations. Since no regulations have been issued, there can be no assurance as to the content of such regulations or even whether application of the regulations will be prospective. For these reasons, you are urged to consult with your tax adviser.

The Certificate is for use with Qualified Plans. The tax rules applicable to participants in Qualified Plans vary according to the type of plan and the terms and conditions of the plan itself. Therefore, we do not attempt to provide more than general information about the use of the Certificate with Qualified Plans. Participants under a Qualified Plan as well as Certificate Owners, Annuitants, and Designated Beneficiaries are cautioned that the rights of any person to any benefits under a Qualified Plan may be subject to the terms and conditions of the plan regardless of the terms and conditions of the Certificate issued in connection therewith. Following is a brief description of the type of Qualified Plans and of the use of the Certificate in connection with them. Purchasers of the Certificate should seek competent advice concerning the terms and conditions of the particular Qualified Plan and use of the Certificate with that Plan.

The discussion above provides general information regarding federal income tax consequences to annuity purchasers who are U.S. citizens or resident aliens. Purchasers who are not U.S. citizens or are resident aliens will generally be subject to U.S. federal income tax and withholding on annuity distributions at a 30% rate, unless a lower rate applies in a U.S. treaty with the purchaser's country. In addition, purchasers may be subject to state premium tax, other state and/or municipal taxes, and taxes that may be imposed by the purchaser's country of citizenship or residence. Prospective purchasers are advised to consult with a qualified tax adviser regarding U.S., state, and foreign taxation with respect to an annuity purchase.

In accordance with our view of present applicable law, we will vote the shares of the Eligible Funds held in the Variable Account at regular and special meetings of the shareholders of the Eligible Funds in accordance with instructions received from persons having the voting interest in the Variable Account. We will vote shares for which we have not received instructions in the same proportion as we vote shares for which we have received instructions.

However, if the Investment Company Act of 1940 or any regulation thereunder should be amended or if the present interpretation should change, and as a result we determine that we are permitted to vote the shares of the Eligible Funds in our own right, we may elect to do so.

You have the voting interest under a Certificate prior to the Income Date. The number of shares held in each Sub-account which are attributable to you is determined by dividing your Variable Account Value in each Sub-account by the net asset value of the applicable share of the Eligible Fund. The payee has the voting interest after the Income Date under an annuity payment option. The number of shares held in the Variable Account which are attributable to each payee is determined by dividing the reserve for the annuity payments by the net asset value of one share. During the annuity payment period, the votes attributable to a payee decrease as the reserves underlying the payments decrease.

We will determine the number of shares in which a person has a voting interest as of the date established by the respective Eligible Fund for determining shareholders eligible to vote at the meeting of the Fund. We will solicit voting instructions in writing prior to such meeting in accordance with the procedures established by the Eligible Fund.

Each person having a voting interest in the Variable Account will receive periodic reports relating to the Eligible Fund(s) in which he or she has an interest, proxy material and a form with which to give such voting instructions.

Keyport Financial Services Corp. ("KFSC"), our subsidiary, serves as the principal underwriter for the Certificate described in this prospectus. Salespersons who represent us as variable annuity agents will sell the Certificates. Such salespersons are also registered representatives of broker/dealers who have entered into distribution agreements with KFSC. KFSC is registered under the Securities Exchange Act of 1934 and is a member of the National Association of Securities Dealers, Inc. It is located at 125 High Street, Boston, Massachusetts 02110. A dealer selling the Certificate receives no commission.

There are no legal proceedings to which the Variable Account or the Principal Underwriter are a party. We are engaged in various kinds of routine litigation which, in our judgment, is not of material importance in relation to our total capital and surplus.

You may write us with questions about your Certificate at 125 High Street, Boston, MA 02110, or call (800) 367-3653 or write Exeter Insurance Fund, Inc. at P.O. Box 40610, Rochester, New York 14604 or call (800) 466-3863.

1. If there are joint Certificate Owners, both must authorize us and Exeter Insurance Fund, Inc. ("Exeter Insurance Fund") to accept telephone instructions but either Certificate Owner may give us telephone instructions.

2. All callers must identify themselves. We reserve the right to refuse to act upon any telephone instructions in cases where the caller has not sufficiently identified himself/herself to our or Exeter Insurance Fund's satisfaction.

3. Neither we, Exeter Insurance Fund, nor any person acting on our or its behalf shall be subject to any claim, loss, liability, cost or expense if we or such person acted in good faith upon a telephone instruction, including one that is unauthorized or fraudulent. However, we and/or Exeter Insurance Fund will employ reasonable procedures to confirm that a telephone instruction is genuine and, if we and/or Exeter Insurance Fund does not, we and/or Exeter Insurance Fund may be liable for losses due to an unauthorized or fraudulent instruction. You thus bear the risk that an unauthorized or fraudulent instruction executed may cause your Certificate Value to be lower than it would be had no instruction been executed.

4. We record all conversations with disclosure at the time of the call.

5. The application for the Certificate may allow you to create a power of attorney by authorizing another person to give telephone instructions. Unless prohibited by state law, we will treat such power as durable in nature and it shall not be affected by your subsequent incapacity, disability or incompetency. Either we, Exeter Insurance Fund or the authorized person may cease to honor the power by sending written notice to you at your last known address. Neither we, Exeter Insurance Fund nor any person acting on our behalf shall be subject to liability for any act executed in good faith reliance upon a power of attorney.

6. Telephone authorization shall continue in force until:

7. If we receive telephone transfer instructions at 800-367-3653 and/or Exeter Insurance Fund at (800) 466-3863 before the 4:00 P.M. Eastern Time close of trading on the New York Stock Exchange they will be initiated that day based on the unit value prices calculated at the close of that day. Instructions received after the close of trading on the NYSE will be initiated the following business day.

8. Once we and/or Exeter Insurance Fund accept instructions, they may not be canceled.

9. You must make all transfers in accordance with the terms of the Certificate and current prospectus. If your transfer instructions are not in good order, we and/or Exeter Insurance Fund will not execute the transfer and will notify the caller within 48 hours.

10. If you transfer 100% of any Sub-account's value and the allocation formula for purchase payments includes that Sub-account, then we will change the allocation formula for future purchase payments accordingly unless we receive telephone instructions to the contrary. For example, if the allocation formula is 50% to Sub-account A and 50% to Sub-account B and you transfer all of Sub-account A's value to Sub-account B we will change the allocation formula to 100% to Sub-account B unless you instruct us otherwise.

Numbers 1-6 above are applicable.

Issued by:

Keyport Life Insurance Company

125 High Street, Boston, MA 02110-2712

[ ] Yes. I would like to receive the Exeter Variable Annuity Statement of Additional Information.

[ ] Yes. I would like to receive the Exeter Insurance Fund, Inc. Statement of Additional Information.

[ ] Yes. I would like to receive the SteinRoe Variable Investment Trust Statement of Additional Information.

Name

Address

City State Zip

BUSINESS REPLY MAIL

FIRST CLASS MAIL

PERMIT NO. 6719

BOSTON, MA

POSTAGE WILL BE

PAID BY ADDRESSEE

PART B

This Statement of Additional Information (SAI) is not a prospectus but it relates to, and should be read in conjunction with, the Exeter Variable Annuity prospectus dated May 1, 2000. This SAI is incorporated by reference into the prospectus. The prospectus is available, at no charge, by writing Keyport at 125 High Street, Boston, MA 02110 or by calling (800) 437-4466. It may also be obtained by writing Exeter Insurance Fund, Inc. at P.O. Box 40610, Rochester, New York 14604, or by calling (800) 466-3868.

The date of this statement of additional information is May 1, 2000.

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Liberty Mutual Insurance Company ("Liberty Mutual"), a multi-line insurance company, is the ultimate corporate parent of Keyport. Liberty Mutual ultimately controls Keyport through the following intervening holding company subsidiaries: Liberty Mutual Equity Corporation, LFC Holdings Inc., Liberty Financial Companies, Inc. ("LFC") and SteinRoe Services, Inc. Liberty Mutual, as of December 31, 1999, owned, indirectly, approximately 72% of the combined voting power of the outstanding stock of LFC (with the balance being publicly held). For additional information about Keyport, see page 6 of the prospectus.

For each variable payment option, the total dollar amount of each periodic payment will be equal to: (a) the sum of all Sub-account payments; less (b) the pro-rata amount of the annual Certificate Maintenance Charge.

The first payment for each Sub-Account will be determined by deducting any applicable Certificate Maintenance Charge and any applicable state premium taxes and then dividing the remaining value of that Sub-Account by $1,000 and multiplying the result by the greater of: (a) the applicable factor from the Certificate's annuity table for the particular payment option; or (b) the factor currently offered by Keyport at the time annuity payments begin. This current factor may be based on the sex of the payee unless to do so would be prohibited by law.

The number of Annuity Units for each Sub-Account will be determined by dividing such first payment by the Sub-Account Annuity Unit value for the Valuation Period that includes the date of the first payment. The number of Annuity Units remains fixed for the annuity payment period. Each Sub-Account payment after the first one will be determined by multiplying (a) by (b), where: (a) is the number of Sub-Account Annuity Units; and (b) is the Sub-Account Annuity Unit value for the Valuation Period that includes the date of the particular payment.

Variable annuity payments will fluctuate in accordance with the investment results of the underlying Eligible Funds. In order to determine how these fluctuations affect annuity payments, Keyport uses an Annuity Unit value. Each Sub-Account has its own Annuity Units and value per Unit. The Annuity Unit value applicable during any Valuation Period is determined at the end of such period.

When Keyport first purchased Eligible Fund shares on behalf of the Variable Account, Keyport valued each Annuity Unit for each Sub-Account at a specified dollar amount. The Unit value for each Sub-Account in any Valuation Period thereafter is determined by multiplying the value for the prior period by a net investment factor. (See "Net Investment Factor" in the prospectus.) This factor may be greater or less than 1.0; therefore, the Annuity Unit may increase or decrease from Valuation Period to Valuation Period. For each assumed annual investment rate (AIR), Keyport calculates a net investment factor for each Sub-Account by dividing (a) by (b), where:

With a particular AIR, payments after the first one will increase or decrease from month to month based on whether the actual annualized investment return of the selected Sub-Account(s) (after deducting the Mortality and Expense Risk Charge) is better or worse than the assumed AIR percentage. If a given amount of Sub-Account value is applied to a particular payment option, the initial payment will be smaller if a 3% AIR is selected instead of a 6% AIR but, all other things being equal, the subsequent 3% AIR payments have the potential for increasing in amount by a larger percentage and for decreasing in amount by a smaller percentage. For example, consider what would happen if the actual annualized investment return (see the first sentence of this paragraph) is 9%, 6%, 3%, or 0% between the time of the first and second payments. With an actual 9% return, the 3% AIR and 6% AIR payments would both increase in amount but the 3% AIR payment would increase by a larger percentage. With an actual 6% return, the 3% AIR payment would increase in amount while the 6% AIR payment would stay the same. With an actual return of 3%, the 3% AIR payment would stay the same while the 6% AIR payment would decrease in amount. Finally, with an actual return of 0%, the 3% AIR and 6% AIR payments would both decrease in amount but the 3% AIR payment would decrease by a smaller percentage. Note that the changes in payment amounts described above are on a percentage basis and thus do not illustrate when, if ever, the 3% AIR payment amount might become larger than the 6% AIR payment amount. Note though that if Option A (Income for a Fixed Number of Years) is selected and payments continue for the entire period, the 3% AIR payment amount will start out being smaller than the 6% AIR payment amount but eventually the 3% AIR payment amount will become larger than the 6% AIR payment amount.

The number of Annuity Units for each Sub-Account under any variable annuity option will remain fixed during the entire annuity payment period unless the payee makes a written request for a change. Currently, a payee can instruct Keyport to change the Sub-Account(s) used to determine the amount of the variable annuity payments once every 6 months. The payee's request must specify the percentage of the annuity payment that is to be based on the investment performance of each Sub-Account. The percentage for each Sub-Account, if not zero, must be at least 10% and must be a whole number. At the end of the Valuation Period during which Keyport receives the request, Keyport will: (a) value the Annuity Units for each Sub-Account to create a total annuity value; (b) apply the new percentages the payee has selected to this total value; and (c) recompute the number of Annuity Units for each Sub-Account. This new number of units will remain fixed for the remainder of the payment period unless the payee requests another change.

The custodian of the assets of the Variable Account is State Street Bank and Trust Company, a state chartered trust company. Its principal office is at 225 Franklin Street, Boston, Massachusetts.

The Contract and Certificates, which are offered continuously, are distributed by Keyport Financial Services Corp. ("KFSC"), a wholly-owned subsidiary of Keyport.

The consolidated financial statements of Keyport Life Insurance Company at December 31, 1999 and 1998, and for each of the three years in the period ended December 31, 1999, and the financial statements of Keyport Life Insurance Company-Variable Account A at December 31, 1999 and for each of the two years in the period ended December 31, 1999, appearing in this Statement of Additional Information have been audited by Ernst & Young LLP, independent auditors, as set forth in their reports thereon appearing elsewhere herein, and are included in reliance upon such reports given upon the authority of such firm as experts in accounting and auditing.

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The Variable Account may from time to time quote performance information concerning its various Sub-Accounts. A Sub-Account's performance may also be compared to the performance of sub-accounts used with variable annuities offered by other insurance companies. This comparative information may be expressed as a ranking prepared by Financial Planning Resources, Inc. of Miami, FL (The VARDS Report), Lipper Analytical Services, Inc., or by Morningstar, Inc. of Chicago, IL (Morningstar's Variable Annuity Performance Report), which are independent services that compare the performance of variable annuity sub-accounts. The rankings are done on the basis of changes in accumulation unit values over time and do not take into account any charges (such as distribution charges or administrative charges) that are deducted directly from contract values.

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Ibbotson Associates of Chicago, IL provides historical returns from 1926 on capital markets in the United States. The Variable Account may quote the performance of its Sub-Accounts in conjunction with the long-term performance of capital markets in order to illustrate general long-term risk versus reward investment scenarios. Capital markets tracked by Ibbotson Associates include common stocks, small company stocks, long-term corporate bonds, long-term government bonds, U.S. Treasury Bills, and the U.S. inflation rate. Historical total returns are determined by Ibbotson Associates for: Common Stocks, represented by the Standard and Poor's Composite Price Index (an unmanaged weighted index of 90 stocks prior to March 1957 and 500 stocks thereafter of industrial, transportation, utility and financial companies widely regarded by investors as representative of the stock market); Small Company Stocks, represented by the fifth capitalization quintile (i.e., the ninth and tenth deciles) of stocks on the New York Stock Exchange for 1926-1981 and by the performance of the Dimensional Fund Advisors Small Company 9/10 (for ninth and tenth deciles) Fund thereafter; Long Term Corporate Bonds, represented beginning in 1969 by the Salomon Brothers Long-Term High-Grade Corporate Bond Index, which is an unmanaged index of nearly all Aaa and Aa rated bonds, represented for 1946-1968 by backdating the Salomon Brothers Index using Salomon Brothers' monthly yield data with a methodology similar to that used by Salomon Brothers in computing its Index, and represented for 1925-1945 through the use of the Standard and Poor's monthly High-Grade Corporate Composite yield data, assuming a 4% coupon and a 20-year maturity; Long-Term Government Bonds, measured each year using a portfolio containing one U.S. government bond with a term of approximately twenty years and a reasonably current coupon; U.S. Treasury Bills, measured by rolling over each month a one-bill portfolio containing, at the beginning of each month, the shortest-term bill having not less than one month to maturity; Inflation, measured by the Consumer Price Index for all Urban Consumers, not seasonably adjusted, since January, 1978 and by the Consumer Price Index before then. The stock capital markets may be contrasted with the corporate bond and U.S. government securities capital markets. Unlike an investment in stock, an investment in a bond that is held to maturity provides a fixed rate of return. Bonds have a senior priority to common stocks in the event the issuer is liquidated and interest on bonds is generally paid by the issuer before it makes any distributions to common stock owners. Bonds rated in the two highest rating categories are considered high quality and present minimal risk of default. An additional advantage of investing in U.S. government bonds and Treasury bills is that they are backed by the full faith and credit of the U.S. government and thus have virtually no risk of default. Although government securities fluctuate in price, they are highly liquid.

Yield and effective yield percentages for the Stein Roe Money Market Sub-Account are calculated using the method prescribed by the Securities and Exchange Commission. Both yields reflect the deduction of the annual 0.35% asset-based Certificate charge. Both yields also reflect, on an allocated basis, the Certificate's annual $35 Certificate Maintenance Charge. Both yields do not reflect premium tax charges. The yields would be lower if these charges were included. The following are the standardized formulas:

Yield equals:   (A - B - 1) x   365
                   C             7

Effective Yield Equals:   (A - B^)365/7 - 1
                             C

Where:

The yield formula assumes that the weekly net income generated by an investment in the Stein Roe Money Market Sub-Account will continue over an entire year. The effective yield formula also annualizes seven days of net income but it assumes that the net income is reinvested over the year. This compounding effect causes effective yield to be higher than the yield.

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For the 7-day period ended 12/31/99 the yield for the Stein Roe Money Market Sub-Account was 4.28% and the effective yield was 4.37%.

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The financial statements of the Variable Account and Keyport Life Insurance Company are included in the statement of additional information. The consolidated financial statements of Keyport Life Insurance Company are provided as relevant to its ability to meet its financial obligations under the Certificates and should not be considered as bearing on the investment performance of the assets held in the Variable Account.

To the Board of Directors of Keyport Life Insurance Company

and Contract Owners of Variable Account A

We have audited the accompanying statement of net assets of Keyport Life Insurance Company-Variable Account A as of December 31, 1999, and the related statement of operations and changes in net assets for each of the two years in the period then ended. These financial statements are the responsibility of Keyport Life Insurance Company's management. Our responsibility is to express an opinion on these financial statements based on our audits.

We conducted our audits in accordance with auditing standards generally accepted in the United States. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in all material respects, the financial position of Keyport Life Insurance Company - Variable Account A at December 31, 1999 and the results of its operations and changes in net assets for each of the two years in the period then ended, in conformity with accounting principles generally accepted in the United States.

Statement of Net Assets

December 31, 1999

See accompanying notes.

Statement of Net Assets

December 31, 1999

See accompanying notes.

Statement of Operations and Changes in Net Assets

For the Years Ended December 31, 1999 and 1998

See accompanying notes.

Statement of Operations and Changes in Net Assets

For the Years Ended December 31, 1999 and 1998

*Commenced operations July 1, 1999

See accompanying notes.

Statement of Operations and Changes in Net Assets

For the Years Ended December 31, 1999 and 1998

See accompanying notes.

Statement of Operations and Changes in Net Assets

For the Years Ended December 31, 1999 and 1998

See accompanying notes.

Statement of Operations and Changes in Net Assets

For the Years Ended December 31, 1999 and 1998