Which code covers natural gas and propane fired appliances?

The Fuel Gas Code specifically addresses the design, installation, and maintenance of systems using natural gas and propane. This includes guidelines to ensure safe operation and minimize hazards associated with these fuels. The code covers appliances, piping, venting, and appliance connections, all of which are critical to the safe use of gas-fired appliances.

In contrast, the Electrical Code focuses on electrical installations and safety but does not address the specifics of gas appliances. The Safety Code is more general and may encompass various safety regulations but lacks the specific details related to fuel gas appliances. The Energy Code deals with energy efficiency and conservation measures but does not provide the required regulations for the safe operation of natural gas and propane appliances. Therefore, the Fuel Gas Code is the correct choice as it is tailored to the needs and safety measures associated specifically with gas-operated equipment.