American Century California Tax-Free and Municipal Funds (ACCTFMF) * American
Century Government Income Trust (ACGIT) * American Century Investment Trust (ACIT)
* American Century Target Maturities Trust (ACTMT)

PROSPECTUS SUPPLEMENT

CALIFORNIA HIGH-YIELD MUNICIPAL FUND * GINNIE MAE FUND
DIVERSIFIED BOND FUND * HIGH-YIELD FUND * TARGET 2030 FUND

Supplement dated August 29, 2003 * Prospectus dated December 20, 2002 (ACCTFMF)
                                   August 1, 2003 (ACGIT and ACIT);
                                   February 1, 2003 (ACTMT)

SPECIAL MEETING OF C CLASS SHAREHOLDERS

The Boards of Trustees have requested that the following matter be submitted to
shareholders of the funds for approval at a Special Meeting of the C Class
Shareholders to be held on October 17, 2003 or any adjournment thereof.

The record date for the meeting is August 29, 2003.  If you own shares of the
funds as of the close of business on that date, you are entitled to vote at the
Special Meeting. Proxy materials containing more information about this
proposal are expected to be sent to shareholders on or about September 2, 2003.

C Class Shareholders of the aforementioned funds are being asked to consider and
act upon a proposal to amend the current Master Distribution and Individual
Shareholder Services Plan adopted pursuant to Rule 12b-1 under the Investment
Company Act of 1940, as amended, to increase the amount that may be expended for
the distribution of C Class shares. The current 0.75% would be increased to
1.00% for each fund.

If approved by shareholders, this proposal would become effective on January 2,
2004 or as soon as practicable thereafter.

SH-SPL-35650   0308