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                  MERRILL LYNCH OHIO MUNICIPAL BOND FUND OF
               MERRILL LYNCH MULTI-STATE MUNICIPAL SERIES TRUST

                      SUPPLEMENT DATED APRIL 11, 1996 TO
                      PROSPECTUS DATED NOVEMBER 21, 1995

     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:

     Fred Stuebe became the Portfolio Manager of the Fund in April, 1996. 
He has been a Vice President of MLAM since 1989.

Code #16154-1195ALL
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