AGREEMENTS RELATING TO USE OF AND ACCESS TO RIGHTS-OF-WAY.

SEC. 112. AGREEMENTS RELATING TO USE OF AND ACCESS TO RIGHTS-OF-WAY. All agreements between the Secretary of Commerce and the State highway department for the construction of projects on the Interstate System shall contain a clause providing that the State will not add 70 Stat. 384 any points of access to, or exit from, the project in addition to those approved by the Secretary in the plans for such project, without the prior approval of the Secretary. Such agreements shall also contain a clause providing that the State will not permit automotive service stations or other commercial establishments for serving motor vehicle users to be constructed or located on the rights-of-way of the Interstate System. Such agreements may, however, authorize a State or political subdivision thereof to use the air space above and below the established grade line of the highway pavement for the parking of motor vehicles provided such use does not interfere in any way with the free flow of traffic on the Interstate System.