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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 ++ln81jimeFO3wGfwX/nLA==

<SEC-DOCUMENT>9999999995-06-000392.txt : 20060620
<SEC-HEADER>9999999995-06-000392.hdr.sgml : 20060620
<ACCEPTANCE-DATETIME>20060620001516
ACCESSION NUMBER:		9999999995-06-000392
CONFORMED SUBMISSION TYPE:	EFFECT
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20060619
DATE AS OF CHANGE:		20060620
EFFECTIVENESS DATE:		20060619

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MERRILL LYNCH MUNICIPAL BOND FUND INC
		CENTRAL INDEX KEY:			0000225635
		IRS NUMBER:				132896246
		STATE OF INCORPORATION:			NJ
		FISCAL YEAR END:			0630

	FILING VALUES:
		FORM TYPE:		EFFECT
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-133875
		FILM NUMBER:		06914226

	BUSINESS ADDRESS:	
		STREET 1:		800 SCUDDERS MILL RD
		CITY:			PLAINSBORO
		STATE:			NJ
		ZIP:			08536
		BUSINESS PHONE:		6092822026

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ONE LIBERTY MUNICIPAL BOND FUND INC
		DATE OF NAME CHANGE:	19780622
<SERIES-AND-CLASSES-CONTRACTS-DATA>
<MERGER-SERIES-AND-CLASSES-CONTRACTS>
<MERGER>
<ACQUIRING-DATA>
CENTRAL INDEX KEY:			0000225635
<SERIES>
<SERIES-ID>S000002335
<SERIES-NAME>SHORT TERM PORTFOLIO
</SERIES>
</ACQUIRING-DATA>
<TARGET-DATA>
CENTRAL INDEX KEY:			0000844779
<SERIES>
<SERIES-ID>S000001873
<SERIES-NAME>BLACKROCK ULTRASHORT MUNICIPAL PORTFOLIO
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000004893
<CLASS-CONTRACT-NAME>INSTITUTIONAL
<CLASS-CONTRACT-TICKER-SYMBOL>BRUIX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000004894
<CLASS-CONTRACT-NAME>SERVICE
<CLASS-CONTRACT-TICKER-SYMBOL>BRMSX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000004895
<CLASS-CONTRACT-NAME>INVESTOR A
<CLASS-CONTRACT-TICKER-SYMBOL>BRMAX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000004896
<CLASS-CONTRACT-NAME>BLACKROCK
<CLASS-CONTRACT-TICKER-SYMBOL>BUMPX
</CLASS-CONTRACT>
</SERIES>
</TARGET-DATA>
</MERGER>
</MERGER-SERIES-AND-CLASSES-CONTRACTS>
</SERIES-AND-CLASSES-CONTRACTS-DATA>
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<DOCUMENT>
<TYPE>EFFECT
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
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    <schemaVersion>X0101</schemaVersion>

    <submissionType>EFFECT</submissionType>

    <act>33</act>

    <testOrLive>LIVE</testOrLive>

    <effectiveData>
        <finalEffectivenessDispDate>2006-06-19</finalEffectivenessDispDate>
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                    <acquiringSeriesId>S000002335</acquiringSeriesId>
                    <acquiringSeriesName>Short Term Portfolio</acquiringSeriesName>
                    <targetCik>0000844779</targetCik>
                    <targetEntityName>BLACKROCK FUNDS</targetEntityName>
                    <targetSeriesId>S000001873</targetSeriesId>
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                    <targetClassContractId>C000004894</targetClassContractId>
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                    <acquiringEntityName>MERRILL LYNCH MUNICIPAL BOND FUND INC</acquiringEntityName>
                    <acquiringSeriesId>S000002335</acquiringSeriesId>
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                    <targetSeriesId>S000001873</targetSeriesId>
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                    <targetClassContractName>BLACKROCK</targetClassContractName>
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