<SEC-DOCUMENT>0001445546-18-000716-index.html : 20180130
<SEC-HEADER>0001445546-18-000716.hdr.sgml : 20180130
<ACCEPTANCE-DATETIME>20180130143246
ACCESSION NUMBER:		0001445546-18-000716
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20180130
DATE AS OF CHANGE:		20180130

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BLACKROCK MUNIYIELD CALIFORNIA QUALITY FUND, INC.
		CENTRAL INDEX KEY:			0000888410
		IRS NUMBER:				223194459
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-84466
		FILM NUMBER:		18558539

	BUSINESS ADDRESS:	
		STREET 1:		100 BELLEVUE PARKWAY
		CITY:			WILMINGTON
		STATE:			DE
		ZIP:			19809
		BUSINESS PHONE:		800-441-7762

	MAIL ADDRESS:	
		STREET 1:		100 BELLEVUE PARKWAY
		CITY:			WILMINGTON
		STATE:			DE
		ZIP:			19809

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	BLACKROCK MUNIYIELD CALIFORNIA QUALITY FUND, INC
		DATE OF NAME CHANGE:	20101109

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	BLACKROCK MUNIYIELD CALIFORNIA INSURED FUND, INC
		DATE OF NAME CHANGE:	20070612

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MUNIYIELD CALIFORNIA INSURED FUND INC
		DATE OF NAME CHANGE:	20050726

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FIRST TRUST PORTFOLIOS LP
		CENTRAL INDEX KEY:			0001184765
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			IL

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		12O EAST LIBERTY DRIVE
		STREET 2:		SUITE 400
		CITY:			WHEATON
		STATE:			IL
		ZIP:			60187
		BUSINESS PHONE:		630-765-8000

	MAIL ADDRESS:	
		STREET 1:		12O EAST LIBERTY DRIVE
		STREET 2:		SUITE 400
		CITY:			WHEATON
		STATE:			IL
		ZIP:			60187
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>sc13g_3.txt
<DESCRIPTION>AMENDED SCHEDULE 13G
<TEXT>
Document 1 - file: sc13g_3.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>ex99_3.txt
<DESCRIPTION>JOINT FILING AGREEMENT
<TEXT>
Document 2 - file: ex99_3.txt

</DOCUMENT>
</SEC-DOCUMENT>