The NFPA standard for the inspection, testing and maintenance of water based fire protection systems has undergone significant changes as a result of the latest code revision cycle. This standard plays a critical role in establishing requirements for the proper inspection and testing of automatic fire sprinkler systems, standpipe systems, fire pumps, and other water-based systems in commercial and institutional buildings, as well as in multi-family residential occupancies. Below are answers to some commonly asked questions that address a variety of topics related to this important NFPA standard.