<SEC-DOCUMENT>0001193125-18-222300-index.html : 20180720 <SEC-HEADER>0001193125-18-222300.hdr.sgml : 20180720 <ACCEPTANCE-DATETIME>20180720140035 ACCESSION NUMBER: 0001193125-18-222300 CONFORMED SUBMISSION TYPE: N-CSRS PUBLIC DOCUMENT COUNT: 9 CONFORMED PERIOD OF REPORT: 20180531 FILED AS OF DATE: 20180720 DATE AS OF CHANGE: 20180720 EFFECTIVENESS DATE: 20180720 FILER: COMPANY DATA: COMPANY CONFORMED NAME: MFS CALIFORNIA MUNICIPAL FUND CENTRAL INDEX KEY: 0001092896 IRS NUMBER: 043483817 STATE OF INCORPORATION: MA FISCAL YEAR END: 1130 FILING VALUES: FORM TYPE: N-CSRS SEC ACT: 1940 Act SEC FILE NUMBER: 811-09537 FILM NUMBER: 18962178 BUSINESS ADDRESS: STREET 1: 111 HUNTINGTON AVENUE STREET 2: 24TH FLOOR CITY: BOSTON STATE: MA ZIP: 02199 BUSINESS PHONE: 6179545000 MAIL ADDRESS: STREET 1: 111 HUNTINGTON AVENUE STREET 2: 24TH FLOOR CITY: BOSTON STATE: MA ZIP: 02199 FORMER COMPANY: FORMER CONFORMED NAME: MFS CALIFORNIA INSURED MUNICIPAL FUND DATE OF NAME CHANGE: 20070629 FORMER COMPANY: FORMER CONFORMED NAME: COLONIAL CALIFORNIA INSURED MUNICIPAL FUND DATE OF NAME CHANGE: 19990927 FORMER COMPANY: FORMER CONFORMED NAME: PREMIER CALIFORNIA MUNICIPAL INCOME FUND DATE OF NAME CHANGE: 19990809 </SEC-HEADER> <DOCUMENT> <TYPE>N-CSRS <SEQUENCE>1 <FILENAME>d586883dncsrs.htm <DESCRIPTION>MFS CALIFORNIA MUNICIPAL FUND N-CSRS <TEXT> Document 1 - file: d586883dncsrs.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.CERT <SEQUENCE>2 <FILENAME>d586883dex99cert.htm <DESCRIPTION>SECTION 302 CERTIFICATIONS <TEXT> Document 2 - file: d586883dex99cert.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.906CERT <SEQUENCE>3 <FILENAME>d586883dex99906cert.htm <DESCRIPTION>SECTION 906 CERTIFICATIONS <TEXT> Document 3 - file: d586883dex99906cert.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>4 <FILENAME>g586883ernst_youngllp.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 4 - file: g586883ernst_youngllp.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>5 <FILENAME>g586883g17m13.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 5 - file: g586883g17m13.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>6 <FILENAME>g586883g69v38.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 6 - file: g586883g69v38.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>7 <FILENAME>g586883g72s28.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 7 - file: g586883g72s28.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>8 <FILENAME>g586883manning_photo.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 8 - file: g586883manning_photo.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>9 <FILENAME>g586883manning_sig.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 9 - file: g586883manning_sig.jpg
</DOCUMENT> </SEC-DOCUMENT>