The Massachusetts Electrical Code is based on NFPA 70 , 2017 edition with Massachusetts amendments enacted by the Board of Fire Prevention Regulations.
Massachusetts Electrical Code
The current State Electrical Code currently in effect is based upon NFPA 70, 2017 edition. To view this code free of charge, go to www.nfpa.org, click on "Codes and Standards", select NFPA 70, Free Access, select the 2017 edition, click on "view". The Board of Fire Prevention Regulations also adopted Massachusetts amendments to the code to address situations unique to our Commonwealth.
Additional Resources for Massachusetts Electrical Code
Past Editions of the State Electrical Code
Code enforcement officials, architects, and engineers often to need to refer to previous editions of the State Electrical Code that were in effect when a building was built or occupied. NFPA
National Electrical Code:
To view the Base Code - NFPA -70, go to the NFPA Codes webpage, select the code edition you would like to view, and then the website will ask you to register to be able to view the archived version of the code.
Below are the previous Massachusetts Amendments to NPFA 70. Each document will tell you which edition of NFPA 70 was in effect at the time.