Emergency switch

Does a gas fired boiler need a remote emergency cutoff switch, or only Oil fired equipment?
And where would be the proper location for it.
I tried looking at NFPA 31, but I’m still not sure.

Thank you.

In older homes we used to see a shutoff switch at the top of the basement stairs for gas fired boilers but that requirement has been gone for a long time. Now we just install a disconnecting means at the boiler.