<SEC-DOCUMENT>0001193125-15-198590-index.html : 20150522 <SEC-HEADER>0001193125-15-198590.hdr.sgml : 20150522 <ACCEPTANCE-DATETIME>20150522152436 ACCESSION NUMBER: 0001193125-15-198590 CONFORMED SUBMISSION TYPE: N-CSR PUBLIC DOCUMENT COUNT: 6 CONFORMED PERIOD OF REPORT: 20150331 FILED AS OF DATE: 20150522 DATE AS OF CHANGE: 20150522 EFFECTIVENESS DATE: 20150522 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Eaton Vance National Municipal Opportunities Trust CENTRAL INDEX KEY: 0001454741 IRS NUMBER: 000000000 FILING VALUES: FORM TYPE: N-CSR SEC ACT: 1940 Act SEC FILE NUMBER: 811-22269 FILM NUMBER: 15886360 BUSINESS ADDRESS: STREET 1: TWO INTERNATIONAL PLACE CITY: BOSTON STATE: MA ZIP: 02110 BUSINESS PHONE: 617-482-8260 MAIL ADDRESS: STREET 1: TWO INTERNATIONAL PLACE CITY: BOSTON STATE: MA ZIP: 02110 FORMER COMPANY: FORMER CONFORMED NAME: Eaton Vance National Municipal Trust DATE OF NAME CHANGE: 20090126 </SEC-HEADER> <DOCUMENT> <TYPE>N-CSR <SEQUENCE>1 <FILENAME>d918640dncsr.htm <DESCRIPTION>EATON VANCE NATIONAL MUNICIPAL OPPORTUNITIES TRUST <TEXT> Document 1 - file: d918640dncsr.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.CERT <SEQUENCE>2 <FILENAME>d918640dex99cert.htm <DESCRIPTION>EX-99.CERT SECTION 302 CERTIFICATION <TEXT> Document 2 - file: d918640dex99cert.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.906CERT <SEQUENCE>3 <FILENAME>d918640dex99906cert.htm <DESCRIPTION>EX-99.906CERT SECTION 906 CERTIFICATION <TEXT> Document 3 - file: d918640dex99906cert.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>4 <FILENAME>g896382g57p32.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 4 - file: g896382g57p32.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>5 <FILENAME>g896382page3.gif <DESCRIPTION>GRAPHIC <TEXT> Document 5 - file: g896382page3.gif
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>6 <FILENAME>g896382u44053_bwlogo.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 6 - file: g896382u44053_bwlogo.jpg
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