No. HB 431

Adds swimming-pool package heater replacement and repair to the licensed scope of work for Class A air-conditioning contractors and mechanical contractors, letting them reconnect a replacement heater to a pool's existing piping.

Limits that new authority to like-for-like replacement: the new heater must match the make and model being replaced, and contractors may not alter the pool's hydraulic system, add bypass valves, install new plumbing, or reroute pipes.

Reorganizes both license definitions' lists of authorized tasks into numbered subparagraphs and ties the existing incidental-excavation allowance explicitly to that numbered list, without changing what excavation work is covered.