HANCOCK JOHN CURRENT INTEREST
485APOS, EX-99.(P).1, 2000-05-30
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                                Code of Ethics of

                          [] John Hancock Advisers, Inc.
                          [] each John Hancock fund
                          [] John Hancock Funds, Inc.
                     (together, called "John Hancock Funds")

                                  July 1, 2000
--------------------------------------------------------------------------------

1.   General Principles.................................................2
2.   To Whom Does This Code Apply?......................................2
3.   Overview of Policies...............................................3
4.   Policies Outside the Code of Ethics................................4
   >>   Company Conflict & Business Practice Policy.....................4
   >>   Inside Information Policy.......................................4
5.   Policies in the Code of Ethics.....................................5
   >>   Restriction on Gifts............................................5
   >>   Preclearance of Securities Transactions.........................5
   >>   Ban on Short-Term Profits.......................................6
   >>   Ban on IPOs.....................................................6
   >>   Disclosure of Private Placement Conflicts.......................7
   >>   Seven Day Blackout Period.......................................7
6.   Reports and Other Disclosures Outside the Code of Ethic............8
   >>   Broker Letter/Duplicate Confirm Statements......................8
7.   Reports and Other Disclosures In the Code of Ethics................8
   >>   Initial Holdings Report and Annual Holdings Report..............8
   >>   Quarterly Transaction Reports...................................9
   >>   Annual Certification............................................9
8.   Limited Access Persons.............................................9
9.   Subadvisers.......................................................10
10.  Reporting Violations..............................................10
11.  Interpretation and Enforcement....................................10

Appendix A: Categories of Personnel....................................12
Appendix B:  Preclearance Procedures...................................13
Appendix C:  Limited Access Persons....................................15
Appendix D:  Subadvisers...............................................16
Appendix E:  Administration and Recordkeeping..........................17

--------------------------------------------------------------------------------


<PAGE>


General Principles

Each person within the John Hancock Funds organization is responsible for
maintaining the very highest ethical standards when conducting business. This
means that:

      o You have a duty at all times to place the interests of our
        clients first.

      o All of your personal securities transactions must be
        conducted consistent with this code of ethics and in such a
        manner as to avoid any actual or potential conflict of
        interest or other abuse of your position of trust and
        responsibility.

      o You should not take inappropriate advantage of your position
        or engage in any fraud or manipulative practice (such as
        frontrunning) with respect to our clients' accounts.


1.    To Whom Does This Code Apply?

This code of ethics applies to you if you are a director, officer or employee of
John Hancock Advisers, Inc., John Hancock Funds, Inc. or a "John Hancock fund"
(any fund or account advised by John Hancock Advisers, Inc.). It also applies to
you if you are an employee of John Hancock Life Insurance Co. or its
subsidiaries who participates in making recommendations for, or receives
information about, portfolio trades of the John Hancock funds.

There are three main categories for persons covered by this code of ethics,
taking into account their positions, duties and access to information regarding
fund portfolio trades. You have been notified about which of these categories
applies to you, based on the Compliance Department's understanding of your
current role. If you have a level of investment access beyond your assigned
category, or if you are promoted or change duties and as a result should more
appropriately be included in a different category, it is your responsibility to
notify Bill Sylva, Director of Compliance.

The basic definitions of the three main categories, with examples, are provided
below. The more detailed definitions of each category are attached as Appendix
A.

<TABLE>
<CAPTION>

                  <S>                                        <C>                                  <C>

---------------------------------------- -------------------------------------- --------------------------------------
                                                "Regular Access" person
      "Investment Access" person            A person who regularly obtains               "Non-Access" person
                                         information regarding fund portfolio
A person who regularly participates in                  trades.                    A person who does not regularly
     a fund's investment process.        examples:                               participate in a fund's investment
                                         ----------
                                         o      personnel in Investment           process or obtain information
examples:                                       Operations or Compliance          regarding fund portfolio trades.
----------
o        portfolio managers              o      most Fund Financial
o        analysts                               Management personnel,           examples:
o        traders                                                                ---------
                                         o      Technology Resources            o        wholesalers
                                                personnel with access to        o        inside wholesalers
                                                investment systems              o        certain administrative
                                         o      attorneys and some legal                 personnel
                                                administration personnel
                                         o      investment administration
                                                personnel
---------------------------------------- -------------------------------------- --------------------------------------

                                                                               2
<PAGE>


2.       Overview of Policies

Please refer to the following chart to determine which policies apply to your
category. These policies are described in detail below.


                <S>                                           <C>                    <C>                      <C>

-------------------------------------------------------------------------------------------------------------------------

                                                       Investment Access        Regular Access           Non-Access
                                                            Person                  Person                Person
-------------------------------------------------------------------------------------------------------------------------
General principles                                            yes                    yes                    yes
-------------------------------------------------------------------------------------------------------------------------

Policies outside the code

-------------------------------------------------------------------------------------------------------------------------
Conflict of interest policy                                   yes                    yes                    yes
-------------------------------------------------------------------------------------------------------------------------
Inside information policy                                     yes                    yes                    yes
-------------------------------------------------------------------------------------------------------------------------

Policies in the code

-------------------------------------------------------------------------------------------------------------------------
Restriction on gifts                                          yes                    yes                    yes
-------------------------------------------------------------------------------------------------------------------------
Pre-clearance requirement                                     yes                    yes                  Limited
-------------------------------------------------------------------------------------------------------------------------
Ban on short-term profits                                     yes                    no                     no
-------------------------------------------------------------------------------------------------------------------------
Ban on IPOs                                                   yes                    no                     no
-------------------------------------------------------------------------------------------------------------------------
Disclosure of private placement conflicts                     yes                    no                     no
-------------------------------------------------------------------------------------------------------------------------
Seven day blackout period                                     yes                    no                     no
-------------------------------------------------------------------------------------------------------------------------

Reports and other disclosures outside the code

-------------------------------------------------------------------------------------------------------------------------
Broker letter/duplicate confirms                              yes                    yes                    yes
-------------------------------------------------------------------------------------------------------------------------

Reports and other disclosures in the code

-------------------------------------------------------------------------------------------------------------------------
Annual recertification form                                   yes                    yes                    yes
-------------------------------------------------------------------------------------------------------------------------
Initial/annual holdings reports                               yes                    yes                    no
-------------------------------------------------------------------------------------------------------------------------
Quarterly transaction reports                                 yes                    yes                    no
-------------------------------------------------------------------------------------------------------------------------

                                                                              3


<PAGE>


Policies Outside the Code of Ethics

John Hancock Funds has certain policies that are not part of the code of ethics,
but are equally important. The two most important of these policies are (1) the
Company Conflict and Business Practice Policy; and (2) the Inside Information
Policy.

>>       Company Conflict & Business Practice Policy

                                                              --------------------------------------------------------
A conflict of interest occurs when your private  interests
interfere  or  could   potentially   interfere  with  your      Applies to:       Investment Access Persons
responsibilities  at work.  You must  not  place  yourself                        Regular Access Persons
or  the  company  in  a position of actual or potential                           Non-Access Persons
 conflict.  The Conflict and Business Practice Policy         --------------------------------------------------------
covers a number of important issues, such as:

o        outside activities (employment, directorships, volunteer work, etc.)
o        personal investments or business relationships
o        misuse of inside information
o        receiving or giving of gifts, entertainment or favors
o        misuse or misrepresentation of your corporate position
o        disclosure of confidential or proprietary information
o        antitrust activities
o        political campaign contributions and expenditures on public officials


>>       Inside Information Policy

                                                              --------------------------------------------------------
The antifraud  provisions of the federal  securities  laws
generally   prohibit  persons  with  material   non-public      Applies to:       Investment Access Persons
information   from   trading  on  or   communicating   the                        Regular Access Persons
information  to others.  Sanctions for violations                                 Non-Access Persons
can include civil injunctions,  permanent bars from the       --------------------------------------------------------
securities industry, civil penalties up to three times the profits made
or losses avoided,  criminal fines and jail sentences.  While Investment  Access
persons are most likely to come in contact with material non-public information,
the rules (and sanctions) in this area apply to all John Hancock Funds personnel
and extend to activities both related and unrelated to your job duties.

The Inside Information Policy covers a number of important issues, such as:

o The misuse of material non-public information
o The information barrier procedure
o The "restricted list" and the "watch list"
o broker letters and duplicate confirmation statements (see section 5 of this
  code of ethics)


                                                                              4
<PAGE>


4.       Policies in the Code of Ethics

>>       Restriction on Gifts

                                                              --------------------------------------------------------
You and your family cannot accept  preferential  treatment
or favors  from  securities  brokers  or  dealers or other      Applies to:       Investment Access Persons
organizations   with  which  John   Hancock   Funds  might                        Regular Access Persons
transact business.  For the protection of both you and John                       Non-Access Persons
Hancock Funds, the appearance of a possible conflict of       --------------------------------------------------------
interest must be avoided.  You should exercise caution
in any  instance  in which  business  travel and lodging are paid for by someone
other than John  Hancock  Funds.  The purpose of this policy is to minimize  the
basis for any charge that you used your John  Hancock  Funds  position to obtain
for yourself  opportunities  which otherwise would not be offered to you. Please
see the Company Conflict and Business Practice Policy's "Compensation and Gifts"
section for additional  details  regarding  restrictions on gifts and exceptions
for "nominal value" gifts.


>>       Preclearance of Securities Transactions

                                                              --------------------------------------------------------
If you are an Investment  Access person or Regular  Access
person,   you  must  "preclear"  (i.e.:   receive  advance     Applies to:   Investment Access Persons
approval of) any  personal  securities  transactions.  The                   Regular Access Persons
preclearance  policy  applies to trades for your  personal
accounts,   those  of  a  spouse, "significant other," minor   Also, for a limited category of trades:
children or family members sharing your household, as                      --------------------------
well  as all  accounts  over  which  you  have  discretion                 Non-Access Persons
or  give  advice  or information.  Due to this preclearance   --------------------------------------------------------
requirement,  participation in investment clubs is prohibited.

The following securities are exempt from the preclear policy: (1) direct
obligations of the U.S. Government, (2) shares of all open-end mutual funds, (3)
bankers' acceptances, bank certificates of deposit, commercial paper and high
quality short-term debt instruments, including repurchase agreements.

If you are a Non-Access person, you must preclear transactions in securities of:

o John Hancock Financial Services, Inc.; and

o any closed-end funds advised by John Hancock Advisers, Inc.

A Non-Access person is not required to preclear other trades. However, please
keep in mind that a Non-Access person is required to report securities
transactions after every trade (even those that are not required to be
precleared) by submitting duplicate confirmation statements, as described in
section 5 of this code of ethics.

The preclearance policy is designed to proactively identify possible "problem
trades" that raise frontrunning or other conflict of interest concerns (example:
when an Investment Access person trades a security on the same day as a John
Hancock fund). Please keep in mind that even if you receive a preclearance, or
are exempt from preclearing a securities transaction, you are still prohibited
from engaging in any fraud or manipulative practice (such as frontrunning) with
respect to a John Hancock fund.

                                                                               5
<PAGE>


You preclear a trade by following the steps outlined in the preclearance
procedures, which are attached as Appendix B. Please note that: o You may not
trade until clearance is received.

o Clearance approval is valid only for the date granted.

o A separate procedure should be followed for requesting preclearance of a
  private  placement  or a  derivative,  as  detailed  in  Appendix B. The
  Compliance Department must maintain a five-year record of all clearances
  of private  placement  purchases by Investment  Access persons,  and the
  reasons supporting the clearances.



>>       Ban on Short-Term Profits

                                                              --------------------------------------------------------
If you are an Investment Access person,  you cannot profit
from the purchase  and sale (or sale and  purchase) of the      Applies to:       Investment Access Persons
same  (or equivalent) securities within 60 calendar days.
The purpose of this policy is to address the risk,            --------------------------------------------------------
real or perceived,  of frontrunning or other abusive  practices  involving
short-term  personal trading.  Any profits realized on short-term trades must be
surrendered  by  check  payable  to John  Hancock  Advisers,  Inc.  and  will be
contributed by John Hancock Advisers, Inc. to a charity.

This policy applies to trades for your personal accounts, those of a spouse,
"significant other," minor children or family members sharing a household, as
well as all accounts over which you have discretion or give advice or
information. If you give away a security, it is considered a sale.

You may invest in derivatives or sell short provided the transaction period
exceeds the 60-day holding period.

You may request an exemption from this policy for involuntary sales due to
unforeseen corporate activity (such as a merger), or hardship reasons (such as
unexpected medical expenses) by sending an e-mail to Bill Sylva, Director of
Compliance.


>>       Ban on IPOs

                                                              --------------------------------------------------------
If you  are an  Investment  Access  person,  you  may  not
acquire  securities  in an initial  public  offering.  You      Applies to:       Investment Access Persons
may  not  purchase any newly - issued securities until the next
business (trading) day after the offering date.               --------------------------------------------------------
This policy  applies to trades for your  personal  accounts,  those of a spouse,
"significant other," minor children or family members sharing your household, as
well  as all  accounts  over  which  you  have  discretion  or  give  advice  or
information.


                                                                               6
<PAGE>


There are two main reasons for this prohibition: (1) these purchases may suggest
that persons have taken inappropriate advantage of their positions for personal
profit; and (2) these purchases may create at least the appearance that an
investment opportunity that should have been available to the John Hancock funds
was diverted to the personal benefit of an individual employee.

You may request an exemption for certain investments that do not create a
potential conflict of interest, such as: (1) securities of a mutual bank or
mutual insurance company received as compensation in a demutualization and other
similar non-voluntary stock acquisitions; or (2) fixed rights offerings.


>>       Disclosure of Private Placement Conflicts

                                                              --------------------------------------------------------
If  you  are an  Investment  Access  person  and  you  own
securities  purchased  in a  private  placement,  you must      Applies to:       Investment Access Persons
disclose   that   holding when you  participate
in a  decision  to  purchase  or sell that same  issuer's    --------------------------------------------------------
securities for a John Hancock fund.  Private  placements  are securities  exempt
from SEC registration  under section 4(2), section 4(6) or rules 504 -506 of the
Securities Act of 1933.

The investment decision must be subject to an independent review by investment
personnel with no personal interest in the issuer. This policy applies to
holdings in your personal accounts, those of a spouse, "significant other,"
minor children or family members sharing your household, as well as all accounts
over which you have discretion or give advice or information.

The purpose of this policy is to provide appropriate scrutiny in situations in
which there is a potential conflict of interest.


>>       Seven Day Blackout Period

                                                              --------------------------------------------------------
If you are a portfolio  manager  (or have been  identified
to the  Compliance  Department  as part  of the  portfolio      Applies to: Investment Access Persons
management team) you are  prohibited  from buying or
selling a security  within seven  calendar  days              --------------------------------------------------------
before and after that security is traded for a fund that you manage.

In addition, all investment access persons are prohibited from knowingly buying
or selling a security within seven calendar days before and after that security
is traded for a John Hancock fund. If a John Hancock fund trades in a security
within seven calendar days before or after you traded in that security, you may
be required to demonstrate that you did not know that the trade was being
considered for that John Hancock fund.

You will be required to sell any security purchased in violation of this policy.
Any profits realized on trades during a seven day blackout period must be
surrendered by check payable to John Hancock Advisers, Inc. and will be
contributed by John Hancock Advisers, Inc. to a charity.

                                                                               7
<PAGE>


This policy applies to holdings in your personal accounts, those of a spouse,
"significant other" or family members sharing your household, as well as all
accounts over which you have discretion or give advice or information.


5.       Reports and Other Disclosures Outside the Code of Ethics

>>       Broker Letter/Duplicate Confirm Statements

                                                              --------------------------------------------------------
As required by the Inside Information Policy, you must
inform your stockbroker that you are employed by an             Applies to:       Investment Access Persons
investment adviser or broker. Your  broker  is                                    Regular Access Persons
subject  to  certain  rules designed  to  prevent                                 Non-Access Persons
favoritism  toward  your  accounts.  You may                  --------------------------------------------------------
not accept negotiated  commission  rates that you  believe may be more favorable
than the broker  grants  to  accounts  with  similar  characteristics.  When
you  open a brokerage account, before any trades are made, you must:

o       notify  Bill  Sylva,  Director  of  Compliance,  so that the  Compliance
        Department  can send to the broker a letter  notifying the broker of the
        requirement to send duplicate confirmation  statements and certain other
        requirements.

o       ensure that your broker sends duplicate  confirmations and copies of all
        periodic statements on a timely basis to the Compliance Department,  4th
        Floor, 101 Huntington Ave., Boston, MA 02199.

These requirements apply to holdings in your personal accounts, those of a
spouse, "significant other," minor children or family members sharing your
household, as well as all accounts over which you have discretion or give advice
or information.


6.       Reports and Other Disclosures In the Code of Ethics

>>       Initial Holdings Report and Annual Holdings Report

                                                              --------------------------------------------------------
You must file an initial  holdings report within 10 calendar
days  after  becoming  an  Investment  Access  person  or  a    Applies to:       Investment Access Persons
Regular  Access  person.   You  must  also  file  an  annual                      Regular Access Persons
holdings  report  (as of December  31st) within 30 calendar
days after the calendar  year end.  These reports must cover  --------------------------------------------------------
all holdings in your  personal  accounts,  those of a spouse,
"significant other," minor children or family members sharing your household, as
well  as all  accounts  over  which  you  have  discretion  or  give  advice  or
information.  You must report:

       o holdings of all securities except: (1) direct obligations of the U.S.
         Government, (2) shares of open-end mutual funds, (3) bankers'
         acceptances, bank certificates of deposit, commercial paper and high
         quality short-term debt instruments, including repurchase agreements.

       o all brokerage accounts that contain securities (including brokerage
         accounts that only contain securities exempt from reporting, such as
         shares of open-end mutual funds).

                                                                               8
<PAGE>


>>       Quarterly Transaction Reports

                                                              --------------------------------------------------------
You must file a  quarterly  transaction  report  within 10
calendar  days after the end of a calendar  quarter if you      Applies to:       Investment Access Persons
are  an  Investment  Access  person  or a  Regular  Access                        Regular Access Persons
person. This report must cover all transactions during the
past calendar quarter in your personal  accounts, those of a  --------------------------------------------------------
spouse,  "significant  other," minor children or family members
sharing your  household,  as well as all accounts over which you
have discretion or give advice or information.

You must report:
o       transactions  in all securities  except:  (1) direct  obligations of the
        U.S.  Government,  (2) open-end mutual funds, (3) bankers'  acceptances,
        bank  certificates  of  deposit,   commercial  paper  and  high  quality
        short-term debt instruments, including repurchase agreements.

o       the opening of any brokerage account that contains securities (including
        brokerage  accounts that only contain  securities exempt from reporting,
        such as shares of open-end mutual funds).



>>       Annual Certification

                                                              --------------------------------------------------------
You  must  provide  an  annual  certification  at  a  date
designated  by the  Compliance  Department  that:  (1) you      Applies to:       Investment Access Persons
have  read  and  understood  this  code  of  ethics;   (2)                        Regular Access Persons
you recognize  that you are subject to its policies;                              Non-Access Persons
and (3) you have complied with its  requirements.             --------------------------------------------------------
You are required to make this  certification  to demonstrate that you understand
the importance of these policies and your  responsibilities under the Code.


7.       Limited Access Persons

There is an additional category of persons called "Limited Access" persons. This
category consists only of directors of John Hancock  Advisers,  Inc. or the John
Hancock funds who:
         (a) are not also officers of John Hancock Advisers, Inc.; and
         (b) do not ordinarily obtain information about fund portfolio trades.

A more detailed definition of Limited Access persons, and a list of the policies
that apply to them, is attached as Appendix C.
</TABLE>

                                                                               9
<PAGE>


8.       Subadvisers

A subadviser to a John Hancock fund has a number of responsibilities  under this
code of ethics, as described in Appendix D.


9.         Reporting Violations

If you know of any violation of our code of ethics, you have a responsibility to
immediately report it. You should also report any deviations from the controls
and procedures that safeguard John Hancock Funds and the assets of our clients.

You can report confidentially to:

o        Bill Sylva, Director of Compliance (375-1798); or

o        Your manager or department head


10.        Interpretation and Enforcement

This code of ethics cannot anticipate every situation in which personal
interests may be in conflict with the interests of our clients. You should be
responsive to the spirit and intent of this code of ethics as well as its
specific provisions.

When any doubt exists regarding any code of ethics provision or whether a
conflict of interest with clients might exist, you should discuss the
transaction beforehand with the Director of Compliance, Bill Sylva, at 375-1798.

The code of ethics is designed to detect and prevent fraud against clients and
fund investors, and to avoid the appearance of impropriety. If you feel
inequitably burdened by any policy, you should feel free to contact the Director
of Compliance (Bill Sylva) or the Ethics Committee. Exceptions may be granted
where warranted by applicable facts and circumstances.

To provide assurance that policies are effective, the Compliance Department will
monitor and check personal securities transaction reports and certifications
against fund portfolio transactions. Other internal auditing procedures may be
adopted from time to time. Additional administration and recordkeeping
procedures are described in Appendix E.

The Director of Compliance will refer violations to the Ethics Committee of John
Hancock Funds for review and appropriate action. The following factors will be
considered when the Ethics Committee determines a fine or other disciplinary
action:

o the person's position and function (senior personnel may be held to a higher
  standard);
o the amount of the trade;
o whether the funds or accounts hold the security and were trading the same day;
o whether the  violation was by a family member.
o whether the person has had a prior violation and which policy was involved.
o whether the employee self-reported the violation.

                                                                              10
<PAGE>


You can request reconsideration of any disciplinary action by submitting a
written request to the Ethics Committee.

No less frequently than annually, a written report of all material violations
and sanctions, significant conflicts of interest and other related issues will
be submitted to the boards of directors of the John Hancock funds for their
review. Violations by NASD registered persons are reported to the NASD
Compliance Officer at John Hancock Life Insurance Company. Sanctions for
violations could include fines, limitation of personal trading activity,
suspension or termination of the violator's position with John Hancock Funds
and/or a report to the appropriate regulatory authority.





                                                                              11
<PAGE>


Appendix A: Categories of Personnel

You have been notified about which of these categories applies to you, based on
the Compliance Department's understanding of your current role. If you have a
level of investment access beyond that category, or if you are promoted or
change duties and as a result should more appropriately be included in a
different category, it is your responsibility to immediately notify Bill Sylva,
Director of Compliance.

1)   Investment Access person: You are an Investment Access person if you are an
     employee of John  Hancock  Advisers,  Inc., a John  Hancock  fund,  or John
     Hancock Life Insurance  Company or its subsidiaries who, in connection with
     your  regular  functions  or  duties,   makes  or  participates  in  making
     recommendations  regarding  the  purchase or sale of  securities  by a John
     Hancock fund.

     (examples: portfolio managers, analysts, traders)

2)   Regular Access person: You are a Regular Access person if:
     ------------------------------
           o  You are an officer (vice president and higher) or director of John
              Hancock Advisers, Inc. or a John Hancock fund. (Some directors may
              be  Limited  Access   persons--please  see  Appendix  C  for  this
              definition.)

           o  You are:
                  -an employee of John Hancock Advisers, Inc., a John Hancock
                   fund or John Hancock Life Insurance Co. or its subsidiaries,
                   or
                  -a director, officer (vice president and higher) or employee
                   of John Hancock Funds, Inc.

               who: (i) in  connection  with your  regular  functions or duties,
               makes,  participates  in, or obtains  information  regarding  the
               purchase or sale of  securities  by a John Hancock  fund; or (ii)
               your functions relate to the making of any  recommendation to the
               fund  regarding  the  purchase  or sale of  securities  by a John
               Hancock fund.

         (examples: Investment Operations personnel, Compliance Department
         personnel, most Fund Financial Management personnel, investment
         administrative personnel, Technology Resources personnel with access to
         investment systems, attorneys and some legal administration personnel)

3)   Non-Access  person:  You are a non-access  person if you are an employee of
     John Hancock  Advisers,  Inc.,  John Hancock Funds,  Inc. or a John Hancock
     fund who does not fit the definitions of any of the other three  categories
     (Investment Access Person, Regular Access Person or Limited Access Person).
     To be a non-access person,  you must not obtain  information  regarding the
     purchase or sale of securities  by a John Hancock fund in  connection  with
     your regular functions or duties.

     (examples: wholesalers, inside wholesalers, certain administrative staff)

4)   Limited Access Person:  Please see Appendix C for this definition.
     ------------------------------

                                                                              12
<PAGE>


Appendix B: Preclearance Procedures



                                 Code of Ethics
                            PRE-CLEARANCE PROCEDURES



You  should  read the Code of  Ethics to  determine  whether  you must  obtain a
preclearance before you enter into a securities transaction. If you are required
to obtain a preclearance, you should follow the procedures detailed below.

1.  Pre-clearance for Public Securities:

A request to pre-clear should be entered into the pre-clear  database on the day
before the requested trade date.

The database is located in Microsoft  Outlook under the Tools  option,  Preclear
Personal  Trades.  It can be accessed by entering your social security number in
the appropriate  field. If Microsoft Outlook is unavailable,  please contact the
HELP Desk at 101 Huntington Avenue at (617) 375-4357 for assistance.

The following data must be entered:

|_|      name of security to trade
|_|      ticker symbol
|_|      cusip number (9 alpha-numeric characters)
|_|      trade type
|_|      purchase date (required when selling a security)
|_|      brokerage firm
|_|      brokerage account number

When you have entered all data,  select SEND REQUEST which is located in the top
right corner of the screen.

You will normally be notified by 11:00 A.M.  Boston time on the requested  trade
date via Microsoft Outlook as to whether clearance has been granted.

If you have any questions or require  assistance  entering a trade,  please call
Mary Ellen  Logee at (617)  375-4967  or Fred  Spring at (617)  375-4987  in the
Investment Compliance Department.

YOU MAY NOT TRADE UNTIL CLEARANCE IS RECEIVED. Clearance approval is valid only
for the date granted.

                                                                              13

<PAGE>


2. Pre-clearance Procedures for Derivatives, Futures, Options and Selling Short:

To request  preclearance of short sales or transactions in futures,  options and
other  derivatives,  you must contact Bill Sylva via Microsoft  Outlook  (please
"cc." Mary Ellen Logee on all such requests). The request must include:

|_|      the associate's name;
|_|      the associate's John Hancock Funds' company;
|_|      the date of request;
|_|      the complete name of the security;
|_|      a description of the security including its relationship to an
         underlying common stock or stock index;
|_|      the duration or description of the contract or exercise  period;
|_|      any potential conflict, present or future, with funds' trading activity
         and whether the security might be offered an inducement to later
         recommend publicly traded securities for any fund;
|_|      the seller and whether or not the seller is one with whom the associate
         does business on a regular basis.

Clearance of such securities may be denied if the  transaction  could create the
appearance of impropriety.


3.  Pre-clearance for Private Placements and Initial Public Offerings:

You may request a preclearance of private placement securities or an Initial
Public Offering by contacting Bill Sylva via Microsoft Outlook (please "cc."
Mary Ellen Logee on all such requests). Please keep in mind that the code of
ethics prohibits Investment Access persons from purchasing securities in an
initial public offering.

The request must include:

|_|      the associate's name;
|_|      the associate's John Hancock Funds' company;
|_|      the complete name of the security;
|_|      the seller and whether or not the seller is one with whom the associate
         does business on a regular basis;
|_|      any potential conflict, present or future, with fund trading activity
         and whether the security might be offered as inducement to later
         recommend publicly traded securities for any fund; and
|_|      the date of the request.

Clearance of private placements or initial public offerings may be denied if the
transaction  could create the  appearance of  impropriety.  Clearance of initial
public  offerings  will also be denied if the  transaction  is prohibited  for a
person due to his or her access category under the code of ethics.

                                                                            5/00

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<PAGE>


Appendix C: Limited Access Persons


You are a Limited Access person if you are a director of John Hancock  Advisers,
Inc. or a John Hancock fund and you meet the two following criteria:
      (a) you are not an officer of John Hancock Advisers, Inc.; and
      (b) you do not obtain  information  in the  ordinary  course of business
          regarding the purchase or sale of securities by a John Hancock fund.
(examples:  certain directors of John Hancock Advisers, Inc. or a John Hancock
 fund)

The following policies apply to your category.  These policies are described in
detail in the code of ethics.
o        Fundamental concept
o        Inside information policy and  procedures*
o        Broker letter/Duplicate Confirms*
o        Initial/annual holdings reports*
o        Quarterly transaction reports*
o        Annual recertification*


         *Exception: If you are an independent director of a John Hancock fund:
         -----------
o        you are exempt from the broker letter/duplicate confirms requirement
o        you are exempt from the inside information policy and  procedures
o        you do not have to file an initial holdings report.
o        you do not have to file an annual holdings report.
o        you do not have to file a quarterly  transaction report unless you
         knew (or should  have  known)  that  during the 15  calendar  days
         before or after you trade a security, either:

             (i)  a John Hancock fund purchased or sold the same security, or

             (ii) a John Hancock fund or John Hancock Advisers, Inc. considered
                  purchasing or selling the same security.

             This policy applies to holdings in your personal accounts, those of
             a  spouse,  "significant  other"  or family  members  sharing  your
             household,  as well as all accounts over which you have  discretion
             or give advice or information. If this situation occurs, it is your
             responsibility  to contact Bill Sylva,  Director of Compliance,  at
             (617) 375-1798 and he will assist you with the  requirements of the
             quarterly transaction report.


                                                                              15
<PAGE>


Appendix D:  Subadvisers


A subadviser to a John Hancock fund has a number of responsibilities  under this
code of ethics. If John Hancock Advisers,  Inc. determines that a subadviser has
failed to comply with the provisions of Rule 17j-1, John Hancock Advisers,  Inc.
may deem the subadviser's directors, officers or employees to be subject to this
code of ethics.

>>       Approval of Code of Ethics

Each subadviser to a John Hancock fund must provide a copy of its code of ethics
to the trustees of the relevant  John Hancock  funds for approval  initially and
within 60 calendar days of any material amendment.  The trustees will give their
approval if they determine that the code:

o       contains  provisions  reasonably  necessary to prevent the  subadviser's
        Access  Persons (as defined in Rule 17j-1) from  engaging in any conduct
        prohibited by Rule 17j-1;
o       requires the subadviser's Access Persons to make reports to at least the
        extent required in Rule 17j-1(d);
o       requires the subadviser to institute appropriate procedures for review
        of these reports by management or compliance personnel (as contemplated
        by Rule 17j-1(d)(3));
o       provides for notification of the subadviser's Access Persons in
        accordance with Rule 17j-1(d)(4); and
o       requires the subadviser's Access Persons who are Investment Personnel to
        obtain the pre-clearances required by Rule 17j-1(e);

>>       Reports and Certifications

Each subadviser must provide an annual report and  certification to John Hancock
Advisers,  Inc. and the fund's trustees in accordance with Rule 17j-1(c)(2)(ii).
The subadviser must also provide other reports or information  that John Hancock
Advisers, Inc. may reasonably request.

>>       Recordkeeping Requirements

The  subadviser  must maintain all records for its Access Persons as required by
Rule 17j-1(f).


                                                                              16
<PAGE>


Appendix E:  Administration and Recordkeeping


>>       Adoption and Approval

The  trustees  of a John  Hancock  fund  must  approve  the code of ethics of an
adviser,  subadviser or principal  underwriter  before  initially  retaining its
services.

Any  material  change to a code of ethics of a John Hancock  fund,  John Hancock
Funds,  Inc.,  John Hancock  Advisers,  Inc. or a  subadviser  to a fund must be
approved  by the  trustees  of the John  Hancock  fund,  including a majority of
trustees who are not interested persons, no later than six months after adoption
of the material change.


>>       Administration

No less frequently than annually, John Hancock Funds, Inc., John Hancock
Advisers, Inc., each subadviser and each John Hancock fund will furnish to the
trustees of each John Hancock fund a written report that:

o describes issues that arose during the previous year under the code of ethics
  or the related procedures, including, but not limited to, information about
  material code or procedure violations, and

o certifies that each entity has adopted procedures reasonably necessary to
  prevent its access persons from violating its code of ethics.


>>       Recordkeeping

The Compliance Department will maintain:

o      a copy of the current code of ethics for John Hancock Funds, Inc., John
       Hancock Advisers, Inc., and each John Hancock fund, and a copy of each
       code of ethics in effect at any time within the past five years.
o      a record of any violation of the code of ethics, and of any action taken
       as a result of the violation, for six years.
o      a copy of each report made by an Access  person under the code of ethics,
       for six years (the first two years in a readily accessible place).
o      a record of all persons, currently or within the past five years, who are
       or were  required to make reports  under the code of ethics.  This record
       will also indicate who was responsible for reviewing these reports.
o      a copy of each code of ethics report to the trustees,  for six years (the
       first two years in a readily accessible place).
o      a record of any decision,  and the reasons  supporting  the decision,  to
       approve the acquisition by an Investment  Access person of initial public
       offering securities or private placement securities, for six years.

s:\corporate secretary\compliance 2000\code of ethics2000

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