Authorizes existing building projects to continue when the fossil fuel ban takes effect

This bill amends the state energy code to allow construction projects that have already received approval or permits to continue even after a future ban on fossil fuel equipment takes effect. The underlying law prohibits installing fossil fuel systems in new buildings starting in 2025 and 2028, but this specific provision ensures that projects with approved site plans or building permits before those dates are not halted. It directly affects developers and builders of new residential and commercial structures who have secured necessary local approvals prior to the implementation of the ban. The measure aims to provide certainty for ongoing projects while maintaining the state's goal of eliminating fossil fuels in new construction.