Idaho Code § 63-2455: specific violations.

(1) It is unlawful for any person to operate a motor vehicle or consume any motor fuel in the propulsion of a motor vehicle over twenty-six thousand (26,000) pounds maximum gross weight on the highways of this state, except as provided in section 63-2438, Idaho Code, unless:

(a) Such person is exempt from such requirement under section 63-2440, Idaho Code, or any other provision of state or federal law; or

(b) In the case of vehicles using a gaseous special fuel, such person has complied with section 63-2424, Idaho Code.

(2) It is unlawful to display any international fuels tax agreement (IFTA) cab card or decal or temporary permit that:

(a) Is fictitious or counterfeit; or

(b) Is owned by a person other than the owner, operator or lessee of the vehicle on which it is displayed.