Va. Code Ann. § 15.2-2253

A local planning commission on its own initiative may or at the request of the governing body of the locality shall prepare and recommend amendments to the subdivision ordinance. The procedure for amendments shall be the same as for the preparation and recommendation and approval and adoption of the original ordinance; provided that no amendment shall be adopted by the governing body of a locality without a reference of the proposed amendment to the commission for recommendation, nor until sixty days after such reference, if no recommendation is made by the commission.