MERRILL LYNCH ARIZONA MUNICIPAL BOND FUND OF
MERRILL LYNCH MULTI-STATE MUNICIPAL SERIES TRUST
Supplement dated April 9, 1998 to
Prospectus dated October 28, 1997
The third paragraph under "Management of the Trust -- Management and
Advisory Arrangements," which provides the name and biography of the
portfolio manager of the Fund, is revised as follows:
Robert D. Sneeden became the Portfolio Manager of the Fund and is
responsible for the day-to-day management of the Fund's investment
portfolio. He has been an Assistant Vice President of MLAM since 1994.
Prior to that he was a Vice President of Lehman Brothers Inc. from
1990 to 1994.
Code #13974-1097ALL
MERRILL LYNCH ARIZONA MUNICIPAL BOND FUND OF
MERRILL LYNCH MULTI-STATE MUNICIPAL SERIES TRUST
Supplement dated April 9, 1998 to the
Statement of Additional Information dated October 28, 1997
The name and biography of the portfolio manager of the Fund, which is
listed under "Management of the Trust -- Trustees and Officers," is revised
as follows:
ROBERT D. SNEEDEN (45) -- Portfolio Manager of the Fund (1)(2) --
Assistant Vice President of MLAM since 1994; Vice President of Lehman
Brothers Inc. from 1990 to 1994.
Code #13975-1097ALL