American Century Investments
4500 Main Street
Kansas City, Missouri 64111
April 2, 1998
Securities and Exchange Commission
450 Fifth Street, N.W.
Washington, DC 20549
RE: American Century Municipal Trust
1933 Act File No. 2-91229
1940 Act File No. 811-4025
Ladies and Gentlemen:
Pursuant to Rule 497(j) under the Securities Act of 1933, as amended, the
undersigned hereby certifies that the form of prospectus and statement of
additional information that would have been filed under paragraph (b) or (c) of
Rule 497 with respect to the above-referenced issuer would not have differed
from that contained in Post-Effective Amendment No. 23, filed March 26, 1998, to
the issuer's Registration Statement on Form N-1A.
Any concerns regarding this filing should be directed to the undersigned at
(650) 967-9806.
Sincerely,
/s/Lisa S. Brown
Lisa S. Brown
Federal Securities Administrator
