Stormwater management; proprietary best management practices.

Stormwater management; proprietary best management practices; emergency. Directs the State Water Control Board to update its regulations providing for the certification and use of a proprietary best management practice (BMP) if another state, regional, or national program has verified its nutrient or sediment removal effectiveness and its having met or exceeded all of such program's established test protocol requirements. Currently, the BMP may only be used if another state, regional, or national certification program has verified and certified its nutrient or sediment removal effectiveness. The bill also directs the Department of Environmental Quality to prioritize review of any proprietary BMP that was on the Virginia Stormwater BMP Clearinghouse prior to December 31, 2021, and that submits documentation of verification of effectiveness by another state, regional, or national program. The bill contains an emergency clause.