Unless otherwise specified in this title, the registration fees for trailers and semitrailers not designed and used for the transportation of passengers on the highways in the Commonwealth shall be as follows: From the foregoing registration fees, the following amounts, regardless of weight category, shall be paid by the Department into the state treasury and set aside for the payment of the administrative costs of the safety inspection program provided for in Article 21 (§ 46.2-1157 et seq.) of Chapter 10 of this title: (i) from each one-year registration fee, one dollar and fifty cents; (ii) from each two-year registration fee, three dollars; and (iii) from each permanent registration fee, four dollars.