This bill requires the State Energy Resources Conservation and Development Commission to establish a statewide certification program for licensed contractors to install residential heat pump water heaters and HVAC systems by January 1, 2027, including a state training program. Licensed contractors with certification would be allowed to self-certify installations, and local entities must accept this certification. Local jurisdictions must also provide alternative inspection options, create automated permitting platforms by July 1, 2027, and issue permits in real-time if installations meet specified requirements. The bill prohibits local entities from charging excessive permit fees and makes provisions in governing documents that prohibit the installation of heat pump systems or the replacement of fuel-gas-burning appliances with electric appliances unenforceable. Additionally, it includes provisions for statewide implementation, with reimbursement for any costs mandated by the state.