Which license may only supervise the installation of an assembly of underground piping or conduits that convey water with or without other agents and used as an integral part of any type of fire protection sprinkler system?

• A. RME General
• B. RME Dwelling
• C. RME-I
• D. RME Underground Fire Main

Answer: (D)

The key idea is matching the license to the specific scope of work: supervising the underground portion that carries water as part of a fire protection sprinkler system. Underground fire mains require specialized knowledge of trenching, pipe materials and coatings, backflow prevention, hydraulics, and code compliance because the work is buried and integral to the system’s reliability. A license that explicitly covers underground fire mains is the right one because it authorizes supervising the installation of an underground piping assembly used with any type of fire protection sprinkler system.

Other licenses are broader or restricted to different contexts. A general license covers broader construction work but not the specialized underground fire main scope. A dwelling license is typically limited to single-family residential work. The remaining option (the one for underground fire mains) is the only license whose scope specifically aligns with supervising underground piping for a fire protection sprinkler system.