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MERRILL LYNCH CALIFORNIA INSURED MUNICIPAL BOND FUND OF
MERRILL LYNCH CALIFORNIA MUNICIPAL SERIES TRUST
January 4, 1996
Securities and Exchange Commission
450 Fifth Street, N.W.
Judiciary Plaza
Washington, D.C. 20549
Attention: Division of Investment Management
Re: Merrill Lynch California Insured Municipal Bond Fund of
Merrill Lynch California Municipal Series Trust
Post-Effective Amendment No. 4 to the
Registration Statement on Form N-1A
(Securities Act File No. 33-55864;
Investment Company Act File No. 811-4264)
Ladies and Gentlemen:
Pursuant to Rule 497(j) under the Securities Act of 1933, as amended
(the "1933 Act"), Merrill Lynch California Insured Municipal Bond Fund
(the "Fund") of Merrill Lynch California Municipal Series Trust hereby certifies
that:
(1) the form of prospectus and statement of additional information
that would have been filed pursuant to Rule 497(c) under the 1933
Act would not have differed from that contained in
Post-Effective Amendment No. 4 to the Fund's Registration
Statement on Form N-1A, constituting the most recent amendment to
the Fund's Registration Statement on Form N-1A; and
(2) the text of Post-Effective Amendment No. 4 to the Fund's
Registration Statement on Form N-1A was filed electronically with
the Securities and Exchange Commission on December 29, 1995.
Very truly yours,
MERRILL LYNCH CALIFORNIA INSURED
MUNICIPAL BOND FUND OF
MERRILL LYNCH CALIFORNIA MUNICIPAL SERIES TRUST
By: /s/ Jerry Weiss
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Jerry Weiss
Secretary
