Beginning January 1, 2000, a person offering to sell to a tire dealer conducting business in the state of Washington, a metal flange or cleat intended for installation as a stud in a vehicle tire shall certify that the studs are: (1) Lightweight studs as defined in RCW 46.04.272; or (2) retractable studs that are exempt from the requirements of RCW 46.04.272. Certification must be accomplished by clearly marking the boxes or containers used to ship and store studs with the designation "lightweight." This section does not apply to tires or studs in a wholesaler's existing inventory as of January 1, 2000.