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Current & Past Editions of the Massachusetts Building Code (780 CMR)
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Building Code Editions – Effective and Expiration Dates
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Edition Number
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Effective Date |
Expiration Date |
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1st Edition
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January 1, 1975 |
January 9, 1975 |
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2nd Edition
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January 9, 1975 |
June 1, 1979 |
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3rd Edition
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June 1, 1979 |
September 1, 1980 |
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4th Edition
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September 1, 1980 |
March 1, 1991 |
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5th Edition
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March 1, 1991 |
August 27, 1997 |
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6th Edition
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February 28, 1997 |
March 1, 2009 |
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7th Edition (Base Volume) |
September 1, 2008 |
February 5, 2011 |
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7th Edition (Residential Volume) |
November 13, 2008 |
August 4, 2011 |
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8th Edition (Base Volume) |
August 6, 2010 |
December 31, 2017 |
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8th Edition (Residential Volume) |
February 4, 2011 |
December 31, 2017 |
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9th Edition (Base & Residential Volumes) |
October 20, 2017 |
Current Code |
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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. |
- This page, Dates and Editions of Massachusetts Building Code (780 CMR), is offered by
- Board of Building Regulations and Standards
- Office of Public Safety and Inspections
- Division of Occupational Licensure
Dates and Editions of Massachusetts Building Code (780 CMR)
Effective Dates of Nine Editions