I am looking for guidance on whether sites are held to current year NFPA codes or the "code of construction" like one would be with B31.1.
How would one find the NFPA code during the year of construction if that is the case?
What do you mean site.
The year is sometimes governed by the
Code and year adopted by the city
What the contract specifies
And sometimes other powers to be
By site, I am mean power plant site.
Most all building safety codes require the safety features originally constructed to be operated and maintained under the edition of the Code the plans or construction was done. Only when the original construction is repaired, altered, modified or reconstructed do you use the current AHJ adopted edition of the Codes.
Your best bet may be the construction plans, they should list the edition of the Codes used for constructing the buildings.
The only exception would be the NFPA 101, Life Safety Code where existing occupancies are determined by the edition of NFPA 101 adoption date by the AHJ.
Thank you. Do you know a way of getting a copy of 1977 NFPA 85?
Looks like from the tables below NFPA 85B, 85D, 85E, and 85G were available for use during the 1977 time period.
It seems like if a power plant was built in the 70's/ 80's, it would have been updated by now, using a more recent edtion of NFPA standards.
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