(1) As used in this section, "Utah-Federal Agreement" means the agreement relating to outdoor advertising that is described under Section 72-7-501, and it includes any modifications to the agreement that are signed on behalf of both the state and the United States Secretary of Transportation.
(2) The provisions of this part are subject to and shall be superseded by conflicting provisions of the Utah-Federal Agreement.
(3) If any provision of this part or its application to any person or circumstance is found to be unconstitutional, or in conflict with or superseded by the Utah-Federal Agreement, the remainder of this part and the application of the provision to other persons or circumstances shall not be affected by it.