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Dates and Editions of Massachusetts Building Code (780 CMR)

Effective Dates of Nine Editions

Current & Past Editions of the Massachusetts Building Code (780 CMR)

 

Building Code Editions – Effective and Expiration Dates

 

Edition Number

 

Effective Date

Expiration Date

1st Edition

 

January 1, 1975

January 9, 1975

2nd Edition

 

January 9, 1975

June 1, 1979

3rd Edition

 

June 1, 1979

September 1, 1980

4th Edition

 

September 1, 1980

March 1, 1991

5th Edition

 

March 1, 1991

August 27, 1997

6th Edition

 

February 28, 1997

March 1, 2009

7th Edition

(Base Volume)

September 1, 2008

February 5, 2011

7th Edition

(Residential Volume)

November 13, 2008

August 4, 2011

8th Edition

(Base Volume)

August 6, 2010

December 31, 2017

8th Edition

(Residential Volume)

February 4, 2011

December 31, 2017

9th Edition

(Base & Residential Volumes)

October 20, 2017

Current Code

The disparity in effective vs. expiration dates is due to the fact that members of the Board of Building Regulations and Standards typically allow a concurrency period as we transition from one code to the next version.  For instance, the ninth edition code became first effective on October 20, 2017, but Board members allowed a two, plus month period for code users and enforcers to become acclimated to new code provisions.  During this period, practitioners could choose to use either the eighth or ninth edition of the code, without mixing provisions.  Permit applications for projects designed under the eighth edition code needed to be filed by the last day of 2017.  On January 1, 2018, the ninth edition code became in full force and effect.

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