The petition (original and four copies) accompanied by a statement
of service shall be filed with the Administrative Review Board, U.S.
Department of Labor, Washington, DC 20210. In addition, copies of the
petition shall be served upon each of the following: (a) The Federal,
State, or local agency, or agencies involved; (b) the officer issuing
the wage determination; and (c) any other person (or the authorized
representatives of such persons) known, or reasonably expected, to be
interested in the subject matter of the petition.
