Question:
I'm running oxygen, propane, and nitrogen lines from gas bottles into the studio I'm building. (Oxygen and propane go to torches, nitrogen is for my laser). Does anyone have suggestions for where I can read up on code restrictions for said gasses? Answers such as "Contact your local fire marshall" lack creativity. I'd like to do some reading before I invite the fire marshall onto the site. The studio is ~350sq ft and attached to the house.

Answer: I am not sure what exact code your jurisdiction uses but you can start with the International Fuel Gas Code. The Building Code places restrictions on quantities but normally does not apply to single family residential, a.k.a. R-3. Most jurisdictions will have a separate residential code and I do not recall fuel gases being addressed directly in the residential code. Another possibility is the International Fire Code that a lot of fire departments adopt as their fire prevention code. I do not think it is as detailed as what you would find in the Fuel Gas code but it should speak to signage. Lastly, try looking through the National Fire Protection Association catalogue (www.nfpa.org) to see if there is a code closely resembling your question. Your local fire department should have these NFPA codes you can look through if the library does not have it.