; and (2) annually, that describes— (A) the progress in meeting the annual target described in subsection (a)(3); and (B) any changes to Postal delivery routes or motor vehicle purchase strategies made pursuant to subsection (c). (e) Restrictions To meet the requirements of this Act, the Postmaster General may not— (1) reduce the frequency of delivery of mail to fewer than 6 days each week; (2) close post offices or postal distribution facilities; (3) take any action that would restrict or diminish a collective bargaining agreement or eliminate or reduce any employee benefits; or (4) enter into a contract with a private company to perform duties that, as of the date of enactment of this Act, are performed by bargaining unit employees. 6. Definitions In this Act, the following definitions apply: (1) Contracted vehicle The term contracted vehicle — (A) means any motor vehicle used in carrying out a contract for surface mail delivery pursuant to section 5005(a)(3) of title 39, United States Code; and (B) does not include any motor vehicle used in carrying out a contract for surface mail delivery pursuant to sections 406 and 407 of such title. (2) Motor vehicle The term motor vehicle means any self-propelled vehicle designed for transporting persons or property on a street or highway. (3) Postal delivery route The term Postal delivery route means the transportation route for surface mail delivery. (4) Postal fleet The term Postal fleet means any vehicle that is owned, operated, leased, or otherwise controlled by or assigned to the Postal Service. (5) Postal Service The term Postal Service means the United States Postal Service.