What regulation outlines the requirements for standpipe systems?

The New York City Fire Code specifically outlines the requirements for standpipe systems, making it the most appropriate choice for this question. This code is tailored to the unique conditions and needs of New York City, addressing concerns such as building height, occupancy types, and emergency response procedures that are specific to urban environments.

While the National Fire Protection Association (NFPA) standards provide comprehensive guidelines and best practices for fire protection systems, including standpipes, they serve more as a national benchmark rather than the legally enforceable code that applies specifically in New York City. Similarly, the International Building Code sets standards that can influence local codes but does not directly dictate the requirements for standpipe systems within New York. OSHA regulations primarily focus on workplace safety and health, rather than fire safety measures related to standpipe systems.

Therefore, the New York City Fire Code is the correct source for the requirements governing standpipe systems within its jurisdiction.