Surcharge fees; penalty and interest. (a) Rental companies engaged in the business of renting rental vehicles for periods of thirty-one (31) days or less shall collect, at the time the vehicle is rented in Wyoming, a four percent (4%) surcharge on each rental vehicle contract. For purposes of this chapter, a vehicle is rented in Wyoming if possession is obtained by the renter in Wyoming. The surcharge shall be computed on the total dollar amount stated in the rental contract, except that taxes imposed by chapters 15 and 16 of title 39 shall not be used in computing the surcharge. The surcharge paid under this section shall not be subject to the taxes imposed by chapters 15 and 16 of title 39. (b) The surcharge shall be noted in the rental contract and collected in accordance with the terms of the contract. Except as provided in subsection (c) of this section, the surcharge shall be retained by the rental vehicle agency as reimbursement for any registration fees paid under W.S.