Va. Code § 33.2-1111
Every individual, partnership, or corporation bidding upon any proposed contract for the construction, repair, or maintenance of any part of any public highway or bridge and for supplying any labor, material, or supplies to be used in any such construction, repair, or maintenance shall file with such bid a sworn statement giving the name and location of the principal office of every highway contractors' association of which it is or has been a member during the preceding 12 months. No bid not accompanied by such certificate shall be considered by the Board or the Commissioner of Highways in letting any contract bid upon, nor shall any such contract be let by the Board or the Commissioner of Highways to any bidder failing to file the certificate required by this section.
Va. Code § 33.2-1111