AMERICAN CENTURY MUNICIPAL TRUST
497K3B, 1999-04-22
Previous: ROSS STORES INC, 10-K405, 1999-04-22
Next: NOSTALGIA NETWORK INC, SC 13D/A, 1999-04-22



[front cover]

AMERICAN CENTURY

Fund Profile

[american century logo(reg. sm)]
AMERICAN
CENTURY

Limited-Term Tax-Free Fund

This profile  summarizes key information  about the fund that is included in the
  fund's Prospectus. The fund's Prospectus includes additional information about
   thefund,  including a more detailed  description of the risks associated with
         investing in the fund, that you may want to consider before you invest.

[photos of woman and girls blowing bubbles, men talking, woman at computer]

                                                                  APRIL 25, 1999
                                                                  INVESTOR CLASS

 You may obtain the Prospectus and other  information  about the fund at no cost
  by calling us at 1-800-345-2021, accessing our Web site or visiting one of our
   Investor Centers. See the back cover for additional telephone numbers and our
                                                                        address.




LIMITED-TERM TAX-FREE FUND

1. WHAT IS THE FUND'S INVESTMENT OBJECTIVE?

    Limited-Term Tax-Free seeks safety of principal and high current income that
    is exempt from federal income tax.

2. WHAT IS THE FUND'S INVESTMENT STRATEGY?

    The fund  managers  buy  quality,  short-term  debt  securities  with income
    payments  exempt  from  federal  income  tax.  Cities,  counties  and  other
    municipalities  in the 50 states and U.S.  territories  usually  issue these
    securities for public projects, such as schools and roads.

    The fund  managers  also may buy some quality,  short-term  debt  securities
    whose  payments  are exempt from  regular  federal  income tax,  but not the
    federal alternative minimum tax. Cities,  counties and other  municipalities
    usually  issue these  securities  (called  private  activity  bonds) to fund
    for-profit  private projects,  such as hospitals and athletic  stadiums.  No
    more  than  20%  of  the  fund's  total  assets  may be  invested  in  these
    securities.

    The  weighted  average  maturity of the fund is expected to be five years or
    less.

    Additional   information  about  Limited-Term   Tax-Free's   investments  is
    available in its annual and  semiannual  reports.  In these reports you will
    find a discussion of the market  conditions and investment  strategies  that
    significantly  affected the fund's performance during the most recent fiscal
    period. You may get these reports at no cost by calling us.

3. WHAT ARE THE SIGNIFICANT RISKS OF INVESTING IN THE FUND?

    * When  interest  rates  change,  the fund's  share value will be  affected.
    Generally,  when interest  rates rise,  the fund's share value will decline.
    The opposite is true when interest rates decline. This interest rate risk is
    higher for  Limited-Term  Tax-Free than for funds that have shorter weighted
    average maturities, such as money market funds.

    * The fund may invest in  securities  rated in the  lowest  investment-grade
    category (e.g., Baa or BBB). The issuers of these securities are more likely
    to have problems making interest and principal payments.

    * Some of the  fund's  income  may be  subject  to the  federal  alternative
    minimum tax.

    * Because the fund invests  primarily in  municipal  securities,  it will be
    sensitive to events that affect municipal markets. Limited-Term Tax-Free may
    have a higher  level of risk than funds that invest in a larger  universe of
    securities.

    * As with  all  funds,  at any  given  time  the  value  of your  shares  of
    Limited-Term  Tax-Free may be worth more or less than the price you paid. If
    you sell your  shares  when the  value is less than the price you paid,  you
    will lose money.

    * An investment in the fund is not a bank deposit,  and it is not insured or
    guaranteed by the Federal Deposit Insurance  Corporation (FDIC) or any other
    government agency.

    In summary,  Limited-Term Tax-Free is intended for investors who seek safety
    of principal and high current  income that is exempt from federal income tax
    through a municipal  securities fund and who are willing to accept the risks
    associated with the fund's investment strategy.

    FUND PERFORMANCE

    The  following  bar  chart  shows the  actual  performance  of  Limited-Term
    Tax-Free's shares for each calendar year since the fund's inception on March
    1, 1993.  The bar chart  indicates the  volatility of the fund's  historical
    returns  from year to year.  The bar chart and the  performance  information
    below are not intended to indicate how the fund will perform in the future.

[data shown in bar chart]
    Calendar Year-By-Year Returns (1)
         1998        5.13%
         1997        5.60%
         1996        3.68%
         1995        6.75%
         1994        2.47%

        (1) As of March 31, 1999, the end of the most recent  calendar  quarter,
        Limited-Term Tax-Free's year-to-date return was 0.77%.


Limited-Term Tax-Free                         American Century Investments


    The highest and lowest quarterly returns for the period reflected in the bar
    chart are:

                              Highest                 Lowest
    Limited-Term Tax-Free     2.10% (3Q 1998)         -0.14% (1Q 1994)

    The following table shows the average annual return of the fund's shares for
    the  periods  indicated.  The Merrill  Lynch 0-3 Year  Municipal  Index,  an
    unmanaged index that reflects no operating costs, is included as a benchmark
    for performance comparisons. For current performance information,  including
    yields, please call us or access our Web site.

                                   1 YEAR      5 YEARS         LIFE OF FUND(1)
     AVERAGE ANNUAL TOTAL RETURNS (PERIOD ENDED MARCH 31, 1999)
        Limited-Term Tax-Free       4.90%       4.91%              4.56%
        Merrill Lynch 0-3 Year
        Municipal Index             4.82%       4.65%              4.34%

        (1) The inception date for Limited-Term Tax-Free is March 1, 1993.

4. WHAT ARE THE FUND'S FEES AND EXPENSES?

    There are no sales loads, fees or other charges

    * to buy fund shares directly from American Century

    * to reinvest dividends in additional shares

    * to exchange into the Investor Class shares of other American Century fund

    * to redeem your shares

    The following table describes the fees and expenses that you will pay if you
    buy and hold shares of the fund.

     ANNUAL FUND OPERATING EXPENSES
     (EXPENSES THAT ARE DEDUCTED FROM FUND ASSETS)
          Management Fee                                0.51%(1)
          Distribution and Service (12b-1) Fees         None
          Other Expenses(2)                             0.00%
          Total Annual Fund Operating Expenses          0.51%

        (1) Based on expenses  incurred  during the fund's  most  recent  fiscal
        year.  The fund has a stepped  fee  schedule.  As a result,  the  fund's
        management fee rate generally decreases as fund assets increase.

        (2) Other  expenses,  which  include the fees and expenses of the fund's
        independent  trustees,  their legal counsel,  interest and extraordinary
        expenses, were less than 0.005% for the most recent fiscal year.

           EXAMPLE
             Assuming you . . .
             * invest $10,000 in the fund
             * redeem all of your shares at the end of the periods shown below
             * earn a 5% return each year
             * incur the same operating expenses as shown above
             . . . your cost of investing in the fund would be:

                   1 year        3 years        5 years         10 years
                    $52           $163           $285             $640

                   Of  course,  actual  costs may be  higher or lower.  Use this
                   example to compare the costs of investing in other funds.

5. WHO ARE THE FUND'S INVESTMENT ADVISOR AND PORTFOLIO MANAGERS?

    American Century Investment  Management,  Inc. provides  investment advisory
    and  management  services  for the  fund.  American  Century  uses  teams of
    portfolio  managers,  assistant  portfolio  managers  and  analysts  working
    together to manage its mutual  funds.  The  portfolio  manager who leads the
    team that manages Limited-Term Tax-Free is identified as follows:

    JOEL SILVA, Vice President and Portfolio  Manager,  has been a member of the
    Limited-Term  Tax-Free team since August 1995. He joined American Century in
    August  1989.  He  has  a  bachelor's  degree  in  finance  from  California
    Polytechnic University and an MBA in corporate finance from California State
    University-Hayward.

6. HOW DO I BUY FUND SHARES?

    * Complete and return the enclosed application

    * Call us and exchange shares from another American Century fund

    * Call us and send your investment by bank wire transfer

    Your initial investment must be at least $5,000. If your redemption activity
    causes the value of your  account to fall below this account  minimum,  your
    shares may be redeemed involuntarily.


Fund Profile                                          Limited-Term Tax-Free


7. HOW DO I SELL FUND SHARES?

    You may sell all or part of your fund shares on any  business day by writing
    or calling us. You also may exchange  your shares in  Limited-Term  Tax-Free
    for shares in nearly 70 other  mutual  funds  offered by  American  Century.
    Depending  on the  options  you  select  when you open  your  account,  some
    restrictions  may  apply.  For your  protection,  some  redemption  requests
    require a signature guarantee.

8. HOW ARE FUND DISTRIBUTIONS MADE AND TAXED?

    Limited-Term  Tax-Free pays distributions of substantially all of its income
    monthly.  Distributions  will  generally be exempt from federal  income tax.
    Some  of  the  fund's  income  may,  however,  be  subject  to  the  federal
    alternative  minimum  tax.  Consult your tax advisor for  information  about
    whether   you  are  subject  to  the  federal   alternative   minimum   tax.
    Distributions  are reinvested  automatically in additional shares unless you
    choose another option.

9. WHAT SERVICES ARE AVAILABLE?

    American Century offers several ways to make it easier for you to manage
    your account, such as

    * telephone transactions

    * wire and electronic funds transfers

    * 24-hour Automated Information Line transactions

    * 24-hour online Internet account access and transactions

    You will find more information  about these choices in our Investor Services
    Guide,  which you may  request  by  calling  us,  accessing  our Web site or
    visiting one of our Investor Centers.

    Information   contained  in  our  Investor   Services   Guide   pertains  to
    shareholders  who invest directly with American  Century rather than through
    an employer-sponsored retirement plan or financial intermediary.

    If  you  own  or  are   considering   purchasing   fund  shares  through  an
    employer-sponsored  retirement plan or financial intermediary,  your ability
    to purchase  shares of the fund,  exchange them for shares of other American
    Century  funds,  and  redeem  them will  depend on the terms of your plan or
    financial  intermediary.  If  you  have  questions  about  investing  in  an
    employer-sponsored retirement plan or through a financial intermediary, call
    a Service Representative at 1-800-345-3533.

[american century logo(reg. sm)]
AMERICAN
CENTURY

AMERICAN CENTURY INVESTMENTS
P.O. BOX 419200
KANSAS CITY, MISSOURI 64141-6200

INVESTOR RELATIONS
1-800-345-2021 or 816-531-5575

AUTOMATED INFORMATION LINE
1-800-345-8765

FAX
816-340-7962

TELECOMMUNICATIONS DEVICE FOR THE DEAF
1-800-634-4113 or 816-444-3485

BUSINESS, NOT-FOR-PROFIT AND
EMPLOYER-SPONSORED RETIREMENT PLANS
1-800-345-353

Visit our Web site at   WWW.AMERICANCENTURY.COM  [link to web site with arrow]

SH-PRF-16107   9904                                   Funds Distributor, Inc.
<PAGE>
[front cover]

AMERICAN CENTURY

Fund Profile

[american century logo(reg. sm)]
AMERICAN
CENTURY

Tax-Free Money Market Fund

This profile  summarizes key information  about the fund that is included in the
  fund's Prospectus. The fund's Prospectus includes additional information about
   thefund,  including a more detailed  description of the risks associated with
         investing in the fund, that you may want to consider before you invest.

[photos of woman and girls blowing bubbles, men talking, woman at computer]

                                                                  APRIL 25, 1999
                                                                  INVESTOR CLASS

 You may obtain the Prospectus and other  information  about the fund at no cost
  by calling us at 1-800-345-2021, accessing our Web site or visiting one of our
   Investor Centers. See the back cover for additional telephone numbers and our
                                                                        address.




TAX-FREE MONEY MARKET FUND

1. WHAT IS THE FUND'S INVESTMENT OBJECTIVE?

    Tax-Free Money Market seeks safety of principal and high current income that
    is exempt from federal income tax.

2. WHAT IS THE FUND'S INVESTMENT STRATEGY?

    The fund managers buy high-quality,  cash-equivalent  securities with income
    payments  exempt  from  federal  income  tax.  Cities,  counties  and  other
    municipalities  in the 50 states and U.S.  territories  usually  issue these
    securities for public projects, such as schools and roads.

    The fund managers also may buy some high-quality, cash-equivalent securities
    whose  payments  are exempt from  regular  federal  income tax,  but not the
    federal alternative minimum tax. Cities,  counties and other  municipalities
    usually  issue these  securities  (called  private  activity  bonds) to fund
    for-profit  private projects,  such as hospitals and athletic  stadiums.  No
    more  than  20%  of  the  fund's  total  assets  may be  invested  in  these
    securities.

    Additional   information  about  Tax-Free  Money  Market's   investments  is
    available in its annual and  semiannual  reports.  In these reports you will
    find a discussion of the market  conditions and investment  strategies  that
    significantly  affected the fund's performance during the most recent fiscal
    period. You may get these reports at no cost by calling us.

3. WHAT ARE THE SIGNIFICANT RISKS OF INVESTING IN THE FUND?

    * An investment in the fund is not a bank deposit,  and it is not insured or
    guaranteed by the Federal Deposit Insurance  Corporation (FDIC) or any other
    government  agency.  Although  the fund seeks to preserve  the value of your
    investment at $1.00 per share,  it is possible to lose money by investing in
    the fund.

    *  Because  cash-equivalent  securities  are  among  the  safest  securities
    available,  the  interest  they pay is among the  lowest  for  income-paying
    securities.  Accordingly,  the yield on this fund will  likely be lower than
    funds that invest in longer-term or lower-quality securities.

    * Some of the  fund's  income  may be  subject  to the  federal  alternative
    minimum tax.

    * Because the fund invests  primarily in  municipal  securities,  it will be
    sensitive to events that affect municipal markets. Tax-Free Money Market may
    have a higher  level of risk than funds that invest in a larger  universe of
    securities.

    FUND PERFORMANCE

    The  following  bar chart shows the actual  performance  of  Tax-Free  Money
    Market's  shares  for  each of the last 10  calendar  years.  The bar  chart
    indicates the volatility of the fund's historical returns from year to year.
    The bar chart and the  performance  information  below are not  intended  to
    indicate how the fund will perform in the future.

[data shown in bar chart]
    Calendar Year-By-Year Returns (1)
         1998        3.47%
         1997        3.43%
         1996        2.98%
         1995        3.36%
         1994        2.31%
         1993        1.90%
         1992        2.47%
         1991        4.21%
         1990        5.60%
         1989        6.04%

        (1) As of March 31, 1999, the end of the most recent  calendar  quarter,
        Tax-Free Money Market's year-to-date return was 0.64%.

    The highest and lowest quarterly returns for the period reflected in the bar
    chart are:

                              Highest                 Lowest
    Tax-Free Money Market     1.59% (2Q 1989)         0.44% (1Q 1994)

    The following table shows the average annual return of the fund's shares for
    the periods  indicated.  The Lipper  Tax-Exempt  Money  Market  Average,  an
    unmanaged index that reflects no operating costs, is included as a benchmark
    for performance comparisons. For current performance information,  including
    yields, please call us or access our Web site.


Tax-Free Money Market                         American Century Investments


                               1 YEAR     5 YEARS   10 YEARS    LIFE OF FUND(1)
     AVERAGE ANNUAL TOTAL RETURNS (PERIOD ENDED MARCH 31, 1999)
       Tax-Free
          Money Market          3.26%      3.15%      3.48%         3.94%
       Lipper Tax-Exempt
          Money Market
          Average               2.80%      2.96%      3.39%         3.70%(2)

        (1) The inception date for Tax-Free Money Market is July 31, 1984.

        (2) Benchmark from August 31, 1984.

4. WHAT ARE THE FUND'S FEES AND EXPENSES?

    There are no sales loads, fees or other charges

    * to buy fund shares directly from American Century

    * to reinvest dividends in additional shares

    * to exchange into the Investor Class shares of other American Century fund

    * to redeem your shares

    The following table describes the fees and expenses that you will pay if you
    buy and hold shares of the fund.

     ANNUAL FUND OPERATING EXPENSES
     (EXPENSES THAT ARE DEDUCTED FROM FUND ASSETS)
          Management Fee                               0.50%(1)
          Distribution and Service (12b-1) Fees        None
          Other Expenses(2)                            0.00%
          Total Annual Fund Operating Expenses         0.50%

        (1) Based on expenses  incurred  during the fund's  most  recent  fiscal
        year.  The fund has a stepped  fee  schedule.  As a result,  the  fund's
        management fee rate generally decreases as fund assets increase.

        (2) Other  expenses,  which  include the fees and expenses of the fund's
        independent  trustees,  their legal counsel,  interest and extraordinary
        expenses, were less than 0.005% for the most recent fiscal year.

           EXAMPLE
             Assuming you . . . 
             * invest $10,000 in the fund 
             * redeem all of your shares at the end of the periods shown below 
             * earn a 5% return each year 
             * incur the same operating expenses as shown above

             . . . your cost of investing in the fund would be:

                 1 year          3 years        5 years          10 years
                  $51             $160           $279              $627

                Of course, actual costs may be higher or lower. Use this example
                to compare the costs of investing in other funds.

5. WHO ARE THE FUND'S INVESTMENT ADVISOR AND PORTFOLIO MANAGERS?

    American Century Investment  Management,  Inc. provides  investment advisory
    and  management  services  for the  fund.  American  Century  uses  teams of
    portfolio  managers,  assistant  portfolio  managers  and  analysts  working
    together to manage its mutual  funds.  The  portfolio  manager who leads the
    team that manages Tax-Free Money Market is identified as follows:

    BRYAN E. KARCHER, Portfolio Manager, has been a member of the Tax-Free Money
    Market team since April 1995.  He joined  American  Century in July 1989 and
    has been a Portfolio  Manager  since  1995.  He has a  bachelor's  degree in
    economics from the University of California-Los  Angeles.  He is a Chartered
    Financial Analyst.

6. HOW DO I BUY FUND SHARES?

    * Complete and return the enclosed application

    * Call us and exchange shares from another American Century fund

    * Call us and send your investment by bank wire transfer

    Your initial investment must be at least $2,500. If your redemption activity
    causes the value of your  account to fall below this account  minimum,  your
    shares may be redeemed involuntarily.


Fund Profile                                          Tax-Free Money Market


7. HOW DO I SELL FUND SHARES?

    You may sell all or part of your fund shares on any  business day by writing
    or calling us. You also may  exchange  your shares in Tax-Free  Money Market
    for shares in nearly 70 other  mutual  funds  offered by  American  Century.
    Depending  on the  options  you  select  when you open  your  account,  some
    restrictions  may  apply.  For your  protection,  some  redemption  requests
    require a signature guarantee.

8. HOW ARE FUND DISTRIBUTIONS MADE AND TAXED?

    Dividends  are declared and available for  redemption  daily.  Distributions
    will  generally be exempt from federal income tax. Some of the fund's income
    may,  however,  be subject to the federal  alternative  minimum tax. Consult
    your tax  advisor  for  information  about  whether  you are  subject to the
    federal alternative minimum tax. Distributions are reinvested  automatically
    in additional shares unless you choose another option.

9. WHAT SERVICES ARE AVAILABLE?

    American Century offers several ways to make it easier for you to manage
    your account, such as

    * telephone transactions

    * wire and electronic funds transfers

    * 24-hour Automated Information Line transactions

    * 24-hour online Internet account access and transactions

    You will find more information  about these choices in our Investor Services
    Guide,  which you may  request  by  calling  us,  accessing  our Web site or
    visiting one of our Investor Centers.

    Information   contained  in  our  Investor   Services   Guide   pertains  to
    shareholders  who invest directly with American  Century rather than through
    an employer-sponsored retirement plan or financial intermediary.

    If  you  own  or  are   considering   purchasing   fund  shares  through  an
    employer-sponsored  retirement plan or financial intermediary,  your ability
    to purchase  shares of the fund,  exchange them for shares of other American
    Century  funds,  and  redeem  them will  depend on the terms of your plan or
    financial  intermediary.  If  you  have  questions  about  investing  in  an
    employer-sponsored retirement plan or through a financial intermediary, call
    a Service Representative at 1-800-345-3533.

[american century logo(reg. sm)]
AMERICAN
CENTURY

AMERICAN CENTURY INVESTMENTS
P.O. BOX 419200
KANSAS CITY, MISSOURI 64141-6200

INVESTOR RELATIONS
1-800-345-2021 or 816-531-5575

AUTOMATED INFORMATION LINE
1-800-345-8765

FAX
816-340-7962

TELECOMMUNICATIONS DEVICE FOR THE DEAF
1-800-634-4113 or 816-444-3485

BUSINESS, NOT-FOR-PROFIT AND
EMPLOYER-SPONSORED RETIREMENT PLANS
1-800-345-353

Visit our Web site at   WWW.AMERICANCENTURY.COM  [link to web site with arrow]

SH-PRF-16111   9904                                   Funds Distributor, Inc.
<PAGE>
[front cover]

AMERICAN CENTURY

Fund Profile

[american century logo(reg. sm)]
AMERICAN
CENTURY
Brokerage

Tax-Free Money Market Fund

This profile  summarizes key information  about the fund that is included in the
  fund's Prospectus. The fund's Prospectus includes additional information about
   thefund,  including a more detailed  description of the risks associated with
         investing in the fund, that you may want to consider before you invest.

[photos of woman and girls blowing bubbles, men talking, woman at computer]

                                                                  APRIL 25, 1999
                                                                  INVESTOR CLASS

 You may obtain the Prospectus and other  information  about the fund at no cost
  by calling us at 1-888-345-2071, accessing our Web site or visiting one of our
   Investor Centers. See the back cover for additional telephone numbers and our
                                                                        address.




TAX-FREE MONEY MARKET FUND

1. WHAT IS THE FUND'S INVESTMENT OBJECTIVE?

    Tax-Free Money Market seeks safety of principal and high current income that
    is exempt from federal income tax.

2. WHAT IS THE FUND'S INVESTMENT STRATEGY?

    The fund managers buy high-quality,  cash-equivalent  securities with income
    payments  exempt  from  federal  income  tax.  Cities,  counties  and  other
    municipalities  in the 50 states and U.S.  territories  usually  issue these
    securities for public projects, such as schools and roads.

    The fund managers also may buy some high-quality, cash-equivalent securities
    whose  payments  are exempt from  regular  federal  income tax,  but not the
    federal alternative minimum tax. Cities,  counties and other  municipalities
    usually  issue these  securities  (called  private  activity  bonds) to fund
    for-profit  private projects,  such as hospitals and athletic  stadiums.  No
    more  than  20%  of  the  fund's  total  assets  may be  invested  in  these
    securities.

    Additional   information  about  Tax-Free  Money  Market's   investments  is
    available in its annual and  semiannual  reports.  In these reports you will
    find a discussion of the market  conditions and investment  strategies  that
    significantly  affected the fund's performance during the most recent fiscal
    period. You may get these reports at no cost by calling us.

3. WHAT ARE THE SIGNIFICANT RISKS OF INVESTING IN THE FUND?

    * An investment in the fund is not a bank deposit,  and it is not insured or
    guaranteed by the Federal Deposit Insurance  Corporation (FDIC) or any other
    government  agency.  Although  the fund seeks to preserve  the value of your
    investment at $1.00 per share,  it is possible to lose money by investing in
    the fund.

    *  Because  cash-equivalent  securities  are  among  the  safest  securities
    available,  the  interest  they pay is among the  lowest  for  income-paying
    securities.  Accordingly,  the yield on this fund will  likely be lower than
    funds that invest in longer-term or lower-quality securities.

    * Some of the  fund's  income  may be  subject  to the  federal  alternative
    minimum tax.

    * Because the fund invests  primarily in  municipal  securities,  it will be
    sensitive to events that affect municipal markets. Tax-Free Money Market may
    have a higher  level of risk than funds that invest in a larger  universe of
    securities.

    FUND PERFORMANCE

    The  following  bar chart shows the actual  performance  of  Tax-Free  Money
    Market's  shares  for  each of the last 10  calendar  years.  The bar  chart
    indicates the volatility of the fund's historical returns from year to year.
    The bar chart and the  performance  information  below are not  intended  to
    indicate how the fund will perform in the future.

[data shown in bar chart]
    Calendar Year-By-Year Returns (1)
         1998        3.47%
         1997        3.43%
         1996        2.98%
         1995        3.36%
         1994        2.31%
         1993        1.90%
         1992        2.47%
         1991        4.21%
         1990        5.68%
         1989        6.04%

        (1) As of March 31, 1999, the end of the most recent  calendar  quarter,
        Tax-Free Money Market's year-to-date return was 0.64%.

    The highest and lowest quarterly returns for the period reflected in the bar
    chart are:

                              Highest                 Lowest
    Tax-Free Money Market     1.59% (2Q 1989)         0.44% (1Q 1994)

    The following table shows the average annual return of the fund's shares for
    the periods  indicated.  The Lipper  Tax-Exempt  Money  Market  Average,  an
    unmanaged index that reflects no operating costs, is included as a benchmark
    for performance comparisons. For current performance information,  including
    yields, please call us or access our Web site.


Tax-Free Money Market                         American Century Investments


                                 1 YEAR   5 YEARS   10 YEARS    LIFE OF FUND(1)

     AVERAGE ANNUAL TOTAL RETURNS (PERIOD ENDED MARCH 31, 1999)
      Tax-Free Money Market     3.26%     3.15%       3.48%         3.94%
      Lipper Tax-Exempt
         Money Market Average   2.80%     2.96%       3.39%         3.70%(2)

        (1) The inception date for Tax-Free Money Market is July 31, 1984.

        (2) Benchmark from August 31, 1984.

4. WHAT ARE THE FUND'S FEES AND EXPENSES?

    There are no sales loads, fees or other charges

    * to buy fund shares directly from American Century

    * to reinvest dividends in additional shares

    * to exchange into the Investor Class shares of other American Century funds

    * to redeem your shares

    The following table describes the fees and expenses that you will pay if you
    buy and hold shares of the fund.

     ANNUAL FUND OPERATING EXPENSES
     (EXPENSES THAT ARE DEDUCTED FROM FUND ASSETS)
        Management Fee                                 0.50%(1)
        Distribution and Service (12b-1) Fees          None
        Other Expenses(2)                              0.00%
        Total Annual Fund Operating Expenses           0.50%

        (1) Based on expenses  incurred  during the fund's  most  recent  fiscal
        year.  The fund has a stepped  fee  schedule.  As a result,  the  fund's
        management fee rate generally decreases as fund assets increase.

        (2) Other  expenses,  which  include the fees and expenses of the fund's
        independent  trustees,  their legal counsel,  interest and extraordinary
        expenses, were less than 0.005% for the most recent fiscal year.

           EXAMPLE
             Assuming you . . .
             * invest $10,000 in the fund
             * redeem all of your shares at the end of the periods shown below
             * earn a 5% return each year
             * incur the same operating expenses as shown above
             . . . your cost of investing in the fund would be:

                1 year        3 years        5 years         10 years
                 $51           $160           $279             $627

                Of course, actual costs may be higher or lower. Use this example
                to compare the costs of investing in other funds.

5. WHO ARE THE FUND'S INVESTMENT ADVISOR AND PORTFOLIO MANAGERS?

    American Century Investment  Management,  Inc. provides  investment advisory
    and  management  services  for the  fund.  American  Century  uses  teams of
    portfolio  managers,  assistant  portfolio  managers  and  analysts  working
    together to manage its mutual  funds.  The  portfolio  manager who leads the
    team that manages Tax-Free Money Market is identified as follows:

    BRYAN E. KARCHER, Portfolio Manager, has been a member of the Tax-Free Money
    Market team since April 1995.  He joined  American  Century in July 1989 and
    has been a Portfolio  Manager  since  1995.  He has a  bachelor's  degree in
    economics from the University of California--Los  Angeles. He is a Chartered
    Financial Analyst.

6. HOW DO I BUY FUND SHARES?

    * Complete  and  return the  enclosed  brokerage  application  along with an
    investment check payable to American Century Brokerage

    * Call us and send your investment by bank wire transfer

    * If you already have an American Century Brokerage account,  simply contact
    us by writing, calling or accessing our Web site

    Your initial  investment in your brokerage  account must be at least $2,500.
    If your  redemption  activity causes the value of your account to fall below
    this account minimum, your shares may be redeemed involuntarily.


Fund Profile                                          Tax-Free Money Market


7. HOW DO I SELL FUND SHARES?

    You may sell all or part of your fund shares on any business day by writing,
    calling or accessing our Web site. You also may sell your shares in Tax-Free
    Money Market and make other investments  through American Century Brokerage.
    Depending  on the  options  you  select  when you open  your  account,  some
    restrictions  may  apply.  For your  protection,  some  redemption  requests
    require a signature guarantee.

8. HOW ARE FUND DISTRIBUTIONS MADE AND TAXED?

    Dividends  are declared and available for  redemption  daily.  Distributions
    will  generally be exempt from federal income tax. Some of the fund's income
    may,  however,  be subject to the federal  alternative  minimum tax. Consult
    your tax  advisor  for  information  about  whether  you are  subject to the
    federal alternative minimum tax. Distributions are reinvested  automatically
    in additional shares unless you choose another option.

9. WHAT SERVICES ARE AVAILABLE?

    American Century  Brokerage offers several ways to make it easier for you to
    manage your account, such as

    * telephone transactions

    * wire and electronic funds transfers

    * 24-hour TeleSelect Automated Information and Trading Line transactions

    * 24-hour online Internet account access and transactions

    You  will  find  more  information  about  these  choices  in our  Brokerage
    Information Kit, which you may request by calling us, accessing our Web site
    or visiting one of our Investor Centers.

[american century logo(reg. sm)]
AMERICAN
CENTURY
Brokerage

AMERICAN CENTURY BROKERAGE, INC.
P.O. BOX 419146
KANSAS CITY, MISSOURI 64141-6416

BROKERAGE ASSOCIATE
1-888-345-2071

FAX  650-967-9627

TELESELECT AUTOMATED INFORMATION
AND TRADING LINE
1-888-345-2091

TELECOMMUNICATIONS DEVICE FOR THE DEAF
1-800-634-4113

SEP-IRA SERVICES
1-800-345-3533, ext. 4210

Visit our Web site at   WWW.AMERICANCENTURY.COM  [link to web site with arrow]

SH-PRF-16112   9904                                   Funds Distributor, Inc.
<PAGE>
[front cover]

AMERICAN CENTURY

Fund Profile

[american century logo(reg. sm)]
AMERICAN
CENTURY

Florida Municipal Money Market Fund

This profile  summarizes key information  about the fund that is included in the
  fund's Prospectus. The fund's Prospectus includes additional information about
   thefund,  including a more detailed  description of the risks associated with
         investing in the fund, that you may want to consider before you invest.

[photos of woman and girls blowing bubbles, men talking, woman at computer]

                                                                  APRIL 25, 1999
                                                                  INVESTOR CLASS

 You may obtain the Prospectus and other  information  about the fund at no cost
  by calling us at 1-800-345-2021, accessing our Web site or visiting one of our
   Investor Centers. See the back cover for additional telephone numbers and our
                                                                        address.




FLORIDA MUNICIPAL MONEY MARKET FUND

1. WHAT IS THE FUND'S INVESTMENT OBJECTIVE?

    Florida  Municipal  Money Market seeks safety of principal  and high current
    income  that is exempt from  federal  income tax and seeks to be exempt from
    the Florida intangible personal property tax.

2. WHAT IS THE FUND'S INVESTMENT STRATEGY?

    The fund managers buy high-quality,  cash-equivalent  securities with income
    payments exempt from federal income tax and the Florida intangible  personal
    property tax. Cities,  counties and other  municipalities in Florida usually
    issue these securities for public projects, such as schools and roads.

    The fund  managers  also may buy  high-quality,  cash-equivalent  securities
    whose payments are exempt from federal income tax and the Florida intangible
    personal property tax, but not the federal  alternative minimum tax. Cities,
    counties and other  municipalities in Florida usually issue these securities
    (called private activity bonds) to fund for-profit private projects, such as
    hospitals and athletic stadiums.

    Additional information about Florida Municipal Money Market's investments is
    available in its annual and  semiannual  reports.  In these reports you will
    find a discussion of the market  conditions and investment  strategies  that
    significantly  affected the fund's performance during the most recent fiscal
    period. You may get these reports at no cost by calling us.

3. WHAT ARE THE SIGNIFICANT RISKS OF INVESTING IN THE FUND?

    * An investment in the fund is not a bank deposit,  and it is not insured or
    guaranteed by the Federal Deposit Insurance  Corporation (FDIC) or any other
    government  agency.  Although  the fund seeks to preserve  the value of your
    investment at $1.00 per share,  it is possible to lose money by investing in
    the fund.

    *  Because  cash-equivalent  securities  are  among  the  safest  securities
    available,  the  interest  they pay is among the  lowest  for  income-paying
    securities.  Accordingly,  the yield on this fund will  likely be lower than
    funds that invest in longer-term or lower-quality securities.

    * Some or all of the fund's income may be subject to the federal alternative
    minimum tax.

    * Because the fund invests  primarily in Florida  municipal  securities,  it
    will be sensitive to events that affect Florida's economy. Florida Municipal
    Money  Market may have a higher  level of risk than  funds that  invest in a
    larger universe of securities.

    FUND PERFORMANCE

    The following bar chart shows the actual  performance  of Florida  Municipal
    Money Market's  shares for each calendar year since the fund's  inception on
    April 11,  1994.  The bar  chart  indicates  the  volatility  of the  fund's
    historical  returns  from year to year.  The bar  chart and the  performance
    information  below are not intended to indicate how the fund will perform in
    the future.

[data shown in bar chart]
    Calendar Year-By-Year Returns (1)
         1998        3.13%
         1997        3.39%
         1996        3.67%
         1995        4.07%

        (1) As of March 31, 1999, the end of the most recent  calendar  quarter,
        Florida Municipal Money Market's year-to-date return was 0.63%.

    The highest and lowest quarterly returns for the period reflected in the bar
    chart are:

                              Highest                 Lowest
    Florida Municipal
       Money Market           1.06% (2Q 1995)         0.63% (1Q 1999)

    The following  table shows the average  annual  returns of the fund's shares
    for the periods  indicated.  The Lipper Other States Tax-Exempt Money Market
    Funds, an unmanaged index that reflects no operating costs, is included as a
    benchmark for performance comparisons.  For current performance information,
    including yields, please call us or access our Web site.


Florida Municipal Money Market                American Century Investments


                                                1 YEAR         LIFE OF FUND(1)
     AVERAGE ANNUAL TOTAL RETURNS (PERIOD ENDED MARCH 31, 1999)
          Florida Municipal Money Market        3.00%             3.47%
          Lipper Other States
             Tax-Exempt Money Market Funds      2.89%             3.16%(2)

        (1) The inception date for Florida  Municipal  Money Market is April 11,
        1994.

        (2) Benchmark from April 30, 1994.

4. WHAT ARE THE FUND'S FEES AND EXPENSES?

    There are no sales loads, fees or other charges

    * to buy fund shares directly from American Century

    * to reinvest dividends in additional shares

    * to exchange into the Investor Class shares of other American Century fund

    * to redeem your shares

    The following table describes the fees and expenses that you will pay if you
    buy and hold shares of the fund.

     ANNUAL FUND OPERATING EXPENSES
     (EXPENSES THAT ARE DEDUCTED FROM FUND ASSETS)
         Management Fee                                0.50%(1)
         Distribution and Service (12b-1) Fees         None
         Other Expenses(2)                             0.01%
         Total Annual Fund Operating Expenses          0.51%

        (1) Based on expenses  incurred  during the fund's  most  recent  fiscal
        year.  The fund has a stepped  fee  schedule.  As a result,  the  fund's
        management fee rate generally decreases as fund assets increase.

        (2)  Other  expenses  include  the  fees  and  expenses  of  the  fund's
        independent  trustees,  their legal counsel,  interest and extraordinary
        expenses.

           EXAMPLE
             Assuming you . . .
             * invest $10,000 in the fund
             * redeem all of your shares at the end of the periods shown below
             * earn a 5% return each year
             * incur the same operating expenses as shown above
             . . . your cost of investing in the fund would be:

                   1 year          3 years         5 years           10 years
                    $52             $163            $285               $640

                Of course, actual costs may be higher or lower. Use this example
                to compare the costs of investing in other funds.

5. WHO ARE THE FUND'S INVESTMENT ADVISOR AND PORTFOLIO MANAGERS?

    American Century Investment  Management,  Inc. provides  investment advisory
    and  management  services  for the  fund.  American  Century  uses  teams of
    portfolio  managers,  assistant  portfolio  managers  and  analysts  working
    together to manage its mutual  funds.  The  portfolio  manager who leads the
    team that manages Florida Municipal Money Market is identified as follows:

    BRYAN E.  KARCHER,  Portfolio  Manager,  has been a  member  of the  Florida
    Municipal Money Market team since April 1995. He joined American  Century in
    July 1989 and has been a Portfolio  Manager  since 1995. He has a bachelor's
    degree in economics from the University of California-Los  Angeles.  He is a
    Chartered Financial Analyst.

6. HOW DO I BUY FUND SHARES?

    * Complete and return the enclosed application

    * Call us and exchange shares from another American Century fund

    * Call us and send your investment by bank wire transfer

    Your initial investment must be at least $2,500. If your redemption activity
    causes the value of your  account to fall below this account  minimum,  your
    shares may be redeemed involuntarily.

7. HOW DO I SELL FUND SHARES?

    You may sell all or part of your fund shares on any  business day by writing
    or calling us. You also may exchange your shares in Florida  Municipal Money
    Market  for  shares in nearly 70 other  mutual  funds  offered  by  American
    Century.  Depending  on the options  you select when you open your  account,
    some restrictions may apply. For your protection,  some redemption  requests
    require a signature guarantee.

8. HOW ARE FUND DISTRIBUTIONS MADE AND TAXED?

    Dividends  are declared and available for  redemption  daily.  Distributions
    will generally be exempt from federal income tax and the Florida  intangible
    personal  property tax. Some or all of the fund's  income may,  however,  be
    subject to the federal alternative minimum tax. Consult your tax advisor for
    information about whether you are subject to the federal alternative minimum
    tax. Distributions are reinvested  automatically in additional shares unless
    you choose another option.


Fund Profile                                 Florida Municipal Money Market


9. WHAT SERVICES ARE AVAILABLE?

    American Century offers several ways to make it easier for you to manage
    your account, such as

    * telephone transactions 
    * wire and electronic funds transfers 
    * 24-hour Automated Information Line transactions 
    * 24-hour online Internet account access and transactions

    You will find more information  about these choices in our Investor Services
    Guide,  which you may  request  by  calling  us,  accessing  our Web site or
    visiting one of our Investor Centers.

    Information   contained  in  our  Investor   Services   Guide   pertains  to
    shareholders  who invest directly with American  Century rather than through
    an employer-sponsored retirement plan or financial intermediary.

    If  you  own  or  are   considering   purchasing   fund  shares  through  an
    employer-sponsored  retirement plan or financial intermediary,  your ability
    to purchase  shares of the fund,  exchange them for shares of other American
    Century  funds,  and  redeem  them will  depend on the terms of your plan or
    financial  intermediary.  If  you  have  questions  about  investing  in  an
    employer-sponsored retirement plan or through a financial intermediary, call
    a Service Representative at 1-800-345-3533.

[american century logo(reg. sm)]
AMERICAN
CENTURY

AMERICAN CENTURY INVESTMENTS
P.O. BOX 419200
KANSAS CITY, MISSOURI 64141-6200

INVESTOR RELATIONS
1-800-345-2021 or 816-531-5575

AUTOMATED INFORMATION LINE
1-800-345-8765

FAX
816-340-7962

TELECOMMUNICATIONS DEVICE FOR THE DEAF
1-800-634-4113 or 816-444-3485

BUSINESS, NOT-FOR-PROFIT AND
EMPLOYER-SPONSORED RETIREMENT PLANS
1-800-345-353

Visit our Web site at   WWW.AMERICANCENTURY.COM  [link to web site with arrow]

SH-PRF-16118   9904                                   Funds Distributor, Inc.
<PAGE>
[front cover]

AMERICAN CENTURY

Fund Profile

[american century logo(reg. sm)]
AMERICAN
CENTURY

High-Yield Municipal Fund

This profile  summarizes key information  about the fund that is included in the
  fund's Prospectus. The fund's Prospectus includes additional information about
   thefund,  including a more detailed  description of the risks associated with
         investing in the fund, that you may want to consider before you invest.

[photos of woman and girls blowing bubbles, men talking, woman at computer]

                                                                  APRIL 25, 1999
                                                                  INVESTOR CLASS

 You may obtain the Prospectus and other  information  about the fund at no cost
  by calling us at 1-800-345-2021, accessing our Web site or visiting one of our
   Investor Centers. See the back cover for additional telephone numbers and our
                                                                        address.




HIGH-YIELD MUNICIPAL FUND

1. WHAT IS THE FUND'S INVESTMENT OBJECTIVE?

    High-Yield  Municipal  seeks high current income that is exempt from federal
    income  tax.  The  fund  also  seeks  capital  appreciation  as a  secondary
    objective.

2. WHAT IS THE FUND'S INVESTMENT STRATEGY?

    The fund  managers  buy long- and  intermediate-term  debt  securities  with
    income payments exempt from federal income tax.  Cities,  counties and other
    municipalities  in the 50 states and U.S.  territories  usually  issue these
    securities for public projects, such as schools and roads.

    The fund managers also may buy long- and  intermediate-term  debt securities
    whose  payments  are exempt from  regular  federal  income tax,  but not the
    federal alternative minimum tax. Cities,  counties and other  municipalities
    usually  issue these  securities  (called  private  activity  bonds) to fund
    for-profit private projects, such as hospitals and athletic stadiums.

    The fund managers buy securities that are considered below investment grade,
    including so-called junk bonds. Issuers of these securities often have short
    financial histories or have questionable credit.

    The  weighted  average  maturity  of the fund is  expected to be 10 years or
    longer.

    Additional information about High-Yield Municipal's investments is available
    in its annual  and  semiannual  reports.  In these  reports  you will find a
    discussion  of  the  market   conditions  and  investment   strategies  that
    significantly  affected the fund's performance during the most recent fiscal
    period. You may get these reports at no cost by calling us.

3. WHAT ARE THE SIGNIFICANT RISKS OF INVESTING IN THE FUND?

    * When  interest  rates  change,  the fund's  share value will be  affected.
    Generally,  when interest  rates rise,  the fund's share value will decline.
    The opposite is true when interest rates decline.  The interest rate risk is
    higher for High-Yield  Municipal  than for funds that have shorter  weighted
    average maturities,  such as money market,  short-term and intermediate-term
    bond funds.

    * The fund may invest in securities rated below investment grade,  including
    bonds that are in technical or monetary default. By definition,  the issuers
    of many of these  securities  have  had and may  continue  to have  problems
    making interest and principal payments.

    * Some or all of the fund's income may be subject to the federal alternative
    minimum tax.

    * Because the fund invests  primarily in  municipal  securities,  it will be
    sensitive to events that affect municipal markets.  High-Yield Municipal may
    have a higher  level of risk than funds that invest in a larger  universe of
    securities.

    * As with  all  funds,  at any  given  time  the  value  of your  shares  of
    High-Yield  Municipal  may be worth more or less than the price you paid. If
    you sell your  shares  when the  value is less than the price you paid,  you
    will lose money.

    * An investment in the fund is not a bank deposit,  and it is not insured or
    guaranteed by the Federal Deposit Insurance  Corporation (FDIC) or any other
    government agency.

    In summary,  High-Yield  Municipal is intended for  investors  who seek high
    current  income that is exempt from  federal  income tax through a municipal
    securities fund and who are willing to accept the risks  associated with the
    fund's investment strategy.

4. WHAT ARE THE FUND'S FEES AND EXPENSES?

    There are no sales loads, fees or other charges

    * to buy fund shares directly from American Century

    * to reinvest dividends in additional shares

    * to exchange into the Investor Class shares of other American Century fund

    * to redeem your shares

    The following table describes the fees and expenses that you will pay if you
    buy and hold shares of the fund.


High-Yield Municipal                          American Century Investments


     ANNUAL FUND OPERATING EXPENSES
     (EXPENSES THAT ARE DEDUCTED FROM FUND ASSETS)
         Management Fee                                 0.65%(1)
         Distribution and Service (12b-1) Fees          None
         Other Expenses(2)                              0.00%
         Total Annual Fund Operating Expenses(3)        0.65%

        (1) Based on expenses  incurred  during the fund's  most  recent  fiscal
        year.  The fund has a stepped  fee  schedule.  As a result,  the  fund's
        management fee rate generally decreases as fund assets increase.

        (2) Other  expenses,  which  include the fees and expenses of the fund's
        independent  trustees,  their legal counsel,  interest and extraordinary
        expenses, were less than 0.005% for the most recent fiscal year.

        (3) The advisor has agreed to waive all expenses of High-Yield Municipal
        through April 30, 1999.

           EXAMPLE
             Assuming you . . .
             * invest $10,000 in the fund
             * redeem all of your shares at the end of the periods shown below
             * earn a 5% return each year
             * incur the same operating expenses as shown above
             . . . your cost of investing in the fund would be:

                 1 year          3 years        5 years          10 years
                  $66             $208           $362              $809

                Of course, actual costs may be higher or lower. Use this example
                to compare the costs of investing in other funds.

5. WHO ARE THE FUND'S INVESTMENT ADVISOR AND PORTFOLIO MANAGERS?

    American Century Investment  Management,  Inc. provides  investment advisory
    and  management  services  for the  fund.  American  Century  uses  teams of
    portfolio  managers,  assistant  portfolio  managers  and  analysts  working
    together  to  manage  its  mutual  funds.  The  portfolio  managers  on  the
    High-Yield Municipal team are identified as follows:

    STEVEN M. PERMUT,  Vice President,  Senior Portfolio Manager and Director of
    Municipal Research, has been a member of the High-Yield Municipal team since
    its inception in March 1998. He joined American Century in June 1987. He has
    bachelor's  degrees in business and geography  from State  University of New
    York-Oneonta  and  an  MBA  in  finance  from  Golden  Gate   University-San
    Francisco.

    JOEL SILVA, Vice President and Portfolio  Manager,  has been a member of the
    High-Yield  Municipal  team since its  inception  in March  1998.  He joined
    American  Century in August 1989. He has bachelor's  degrees in finance from
    California  Polytechnic  University  and an MBA in  corporate  finance  from
    California State University-Hayward.

6. HOW DO I BUY FUND SHARES?

    * Complete and return the enclosed application

    * Call us and exchange shares from another American Century fund

    * Call us and send your investment by bank wire transfer

    Your initial investment must be at least $5,000. If your redemption activity
    causes the value of your  account to fall below this account  minimum,  your
    shares may be redeemed involuntarily.

7. HOW DO I SELL FUND SHARES?

    You may sell all or part of your fund shares on any  business day by writing
    or calling us. You also may exchange your shares in High-Yield Municipal for
    shares  in  nearly  70 other  mutual  funds  offered  by  American  Century.
    Depending  on the  options  you  select  when you open  your  account,  some
    restrictions  may  apply.  For your  protection,  some  redemption  requests
    require a signature guarantee.

8. HOW ARE FUND DISTRIBUTIONS MADE AND TAXED?

    High-Yield  Municipal pays  distributions of substantially all of its income
    monthly.  Distributions  will  generally be exempt from federal  income tax.
    Some or all of the fund's  income  may,  however,  be subject to the federal
    alternative  minimum  tax.  Consult your tax advisor for  information  about
    whether   you  are  subject  to  the  federal   alternative   minimum   tax.
    Distributions  are reinvested  automatically in additional shares unless you
    choose another option.


Fund Profile                                           High-Yield Municipal


9. WHAT SERVICES ARE AVAILABLE?

    American Century offers several ways to make it easier for you to manage
    your account, such as

    * telephone transactions

    * wire and electronic funds transfers

    * 24-hour Automated Information Line transactions

    * 24-hour online Internet account access and transactions

    You will find more information  about these choices in our Investor Services
    Guide,  which you may  request  by  calling  us,  accessing  our Web site or
    visiting one of our Investor Centers.

    Information   contained  in  our  Investor   Services   Guide   pertains  to
    shareholders  who invest directly with American  Century rather than through
    an employer-sponsored retirement plan or financial intermediary.

    If  you  own  or  are   considering   purchasing   fund  shares  through  an
    employer-sponsored  retirement plan or financial intermediary,  your ability
    to purchase  shares of the fund,  exchange them for shares of other American
    Century  funds,  and  redeem  them will  depend on the terms of your plan or
    financial  intermediary.  If  you  have  questions  about  investing  in  an
    employer-sponsored retirement plan or through a financial intermediary, call
    a Service Representative at 1-800-345-3533.

[american century logo(reg. sm)]
AMERICAN
CENTURY

AMERICAN CENTURY INVESTMENTS
P.O. BOX 419200
KANSAS CITY, MISSOURI 64141-6200

INVESTOR RELATIONS
1-800-345-2021 or 816-531-5575

AUTOMATED INFORMATION LINE
1-800-345-8765

FAX
816-340-7962

TELECOMMUNICATIONS DEVICE FOR THE DEAF
1-800-634-4113 or 816-444-3485

BUSINESS, NOT-FOR-PROFIT AND
EMPLOYER-SPONSORED RETIREMENT PLANS
1-800-345-353

Visit our Web site at   WWW.AMERICANCENTURY.COM  [link to web site with arrow]

SH-PRF-16120   9904                                   Funds Distributor, Inc.


© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission