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Code Compliance of Existing Installation

Question asked by gbstand on Aug 19, 2020
Latest reply on Aug 23, 2020 by milt.werner

Is anyone aware of a NFPA code/standard or other citable industry authority that generally discusses that code compliance for an existing installation is determined by the code in effect at the time of construction?  For a specific installation, this statement would arguably need to come from the applicable AHJ.  However, I am wanting to make a general statement and would like to cite an industry authority as support.     


Thanks in advance for the responses.