I was curious about this. IANAL (or general contractor) but while it was easy to find lots of regulations about required installation of smoke detectors, I cou

I was curious about this. IANAL (or general contractor) but while it was easy to find lots of regulations about required installation of smoke detectors, I couldn't find any restrictions about silencing them. In particular, I turned out nothing in either California or San Francisco fire code. Of course, Nest is selling to a national market, so I don't doubt that it's required somewhere in the US, but it sure doesn't seem to be that common.