Has anyone requested permission from your AHJ to temporarily place a scenic unit on the proscenium smoke pocket line? Asking for context only - I have no plans of actually doing so. I'm well aware of the codes surrounding fire safety curtains and which are applicable in my jurisdiction (Austin, Texas.) Texas has adopted NFPA 101 (2009) and NFPA 80 by extension. While I am unable to find an exact reference to proscenium fire curtain line obstruction, it is clear throughout the code that it must be able to be operated by one person, be gravity operated in emergencies, make a full seal within a determined time based on height, and have the ability to self deploy based on rapid rise temperatures. NPFA strictly prohibits blocking fire doors and tampering with/preventing safe use of fire protection devices. It also states that the curtain is to be lowered any time the stage is not in use. Based on what I've dug up, the Authority Having Jurisdiction over local fire code is the only person who can approve this sort of request or interpret the standard. The question is whether it is practicable to approach the AHJ with this type of request, and what kind of processes would have to implemented to gain approval. I've seen large scale shows that had full-stage plugs for automation decks that filled the smoke pocket - which was approved, platforming with fiberglass skirting (approved), and cables or rugs taped flat. I've also seen automated systems that automatically retract an obstruction when a fire alarm or fire curtain is deployed, or when there is a power outage. (This option is also quite expensive.) So . . . thoughts?