What NFPA code establishes requirements for the transportation of propane cylinders?

The National Fire Protection Association (NFPA) code that establishes requirements for the transportation of propane cylinders is indeed NFPA 58. This code is specifically focused on the storage, handling, and transportation of liquefied petroleum gases (LP-gases), which includes propane. It outlines safety measures to prevent accidents and ensure safe practices during the movement of propane cylinders, addressing aspects such as design, construction, and labeling of transport vehicles as well as the training of personnel involved in handling these materials.

The other codes mentioned have different focuses. NFPA 1192 pertains to the standards for the design and installation of recreational vehicles; NFPA 30 deals with flammable and combustible liquids; and NFPA 70 sets the National Electrical Code for electrical installations. Therefore, NFPA 58 is the appropriate code for regulations concerning the transportation of propane cylinders.