Which NFPA code pertains to flammable and combustible liquids?

The correct answer addresses NFPA 30, which is the standard specifically designed to provide guidelines for the safe storage, handling, and use of flammable and combustible liquids. This standard encompasses critical aspects such as facility design, storage requirements, and operational procedures to mitigate the risks associated with these types of liquids.

Understanding NFPA 30 is essential for ensuring safety measures are in place whenever flammable and combustible liquids are involved, as it helps prevent fires and other hazardous situations. It outlines the classifications of liquids, provides guidelines for the design of storage facilities, and emphasizes the importance of appropriate spill control and emergency response planning. By adhering to the principles laid out in NFPA 30, organizations can significantly minimize hazards associated with these types of substances.

The other options pertain to different areas within fire safety standards, which do not focus specifically on flammable and combustible liquids. NFPA 25 relates to the inspection, testing, and maintenance of water-based fire protection systems, NFPA 5 does not exist as an active standard, and NFPA 70 is focused on electrical safety and the National Electrical Code.