Somebody's Welding in Your Building Tomorrow
Hot work starts fires hours after everyone has gone home. A permit is how the building owner makes sure the precautions were actually taken — and it is what a fire marshal asks for first. Fill this in, print it, post it at the work.
Why the fire watch stays late
The dangerous part of hot work is not the flame. It is the slag that dropped through a floor penetration nobody covered, and the heat conducted through a steel beam into the insulation on the far side of a wall. Both of those smoulder quietly for a long time.
That is why the standard asks for a watch during the work and monitoring for a set period afterwards, and why the final check includes the room on the other side of the wall and the floors above and below. A crew that packs up the moment the torch goes off has done the most dangerous part of the job wrong.
The 35-foot rule does the rest of the work. Anything combustible within 35 feet moves, gets covered with a listed blanket, or the job waits. There is no careful version of proceeding without it.
Based on NFPA 51B. This is a working document, not legal advice — your authority having jurisdiction and your insurance carrier may require their own permit form, and theirs wins.