A. For purposes of this section, "green roof" means a roof or partially covered roof consisting of plants, soil, or another lightweight growing medium that is installed on top of a waterproof membrane and designed in accordance with the Virginia Stormwater Management Program's standards and specifications for green roofs, as set forth in the Virginia BMP Clearinghouse.
B. Any locality may establish a rate incentive program designed to encourage the use of green roofs in the construction and remodeling of residential and commercial buildings. If established, the incentives shall be based on the percentage of stormwater runoff reduction the green roof provides.