When were hard wired smoke detectors required. I inspected a home built in 1996 today and none of the smoke detectors (one on each level) were hard wired, battery only and they were dead. ???
It was a state by state adoption, nothing in NEC. Here’s a good pdf that gives each state’s adoption year, although keep in mind local jurisdictions could have required before the state officially mandated.
http://www.11alive.com/assetpool/documents/130109012149_smoke_alarm_requirements.pdf
Glenn, Not sure what link you were supplying but my Anti-Virus software picked up the file as containing a virus and it went to immediate quarantine.
It was a pdf document. No viruses. I’ve got antivirus running on mine and didn’t do it. I just scanned the file, nothing. I can’t attach to post as it only lets you attach up to 265K here and it’s a 100 page pdf. Send me your email and I’ll send it to you.