The Finance Officer, or his designee, shall establish the necessary procedure for the sale of such permits, and shall obtain the necessary permits which when displayed from the interior of a vehicle shall be clearly visible from the exterior of the vehicle. (Ord. 3138 § 3, 2009; Ord. 2670 § 1, 1996; Ord. 2436 § 9, 1991; Ord. 973 § 1, 1966; prior code § 19.17.14(C)).