Report of Independent Accountants
To the Trustees and Shareholders of the American Century California
Tax-Free and Municipal Funds:
In planning and performing our audit of the financial statements and
financial highlights of the American Century California Tax-Free and Municipal
Funds (the "Funds"for the year ended August 31, 2000, we considered its internal
control, including control activities for safeguarding securities, in order to
determine our auditing procedures for the purpose of expressing our opinion on
the financial statements and to comply with the requirements of Form N-SAR, not
to provide assurance on internal control.
The management of the Funds is responsible for establishing and maintaining
internal control. In fulfilling this responsibility, estimates and judgments by
management are required to assess the expected benefits and related costs of
controls. Generally, controls that are relevant to an audit pertain to the
entity's objective of preparing financial statements for external purposes that
are fairly presented in conformity with generally accepted accounting
principles. Those controls include the safeguarding of assets against
unauthorized acquisition, use or disposition.
Because of inherent limitations in internal control, errors or fraud may
occur and not be detected. Also, projection of any evaluation of internal
control to future periods is subject to the risk that controls may become
inadequate because of changes in conditions or that the effectiveness of their
design and operation may deteriorate.
Our consideration of internal control would not necessarily disclose all
matters in internal control that might be material weaknesses under standards
established by the American Institute of Certified Public Accountants. A
material weakness is a condition in which the design or operation of one or more
of the internal control components does not reduce to a relatively low level the
risk that misstatements caused by error or fraud in amounts that would be
material in relation to the financial statements being audited may occur and not
be detected within a timely period by employees in the normal course of
performing their assigned functions. However, we noted no matters involving
internal control and its operation, including controls for safeguarding
securities that we consider to be material weaknesses as defined above as of
August 31, 2000.
This report is intended solely for the information and use of the Board of
Directors, management and the Securities and Exchange Commission and is not
intended to be and should not be used by anyone other than these specified
parties.
October 13, 2000
