108. If a fixed fire extinguishing system is installed on any vessel, it must be of a type approved by the __________.

Fixed fire extinguishing systems on U.S. vessels must be approved by the U.S. Coast Guard, as mandated by federal regulations. The U.S. Coast Guard is the regulatory authority responsible for approving marine safety equipment, unlike organizations such as the National Fire Protection Association, American Bureau of Shipping, or the Marine Fire Protection Guild, which do not hold U.S. regulatory approval authority.