future additions to interstate system

future additions to interstate system Sec. 140. The existing language of section 139 of title 23, United States Code, shall be designated as subsection (a) and a new subsection (b) added as follows: “(b) Whenever the Secretary determines that a highway on the Federal-aid primary system would be a logical addition or connection to the Interstate System and would qualify for designation as a route on that system in the same manner as set forth in paragraph 1 of subsection (d) of section 103 of this title, he may upon the affirmative recommendation of the State or States involved designate such highway as a future part of the Interstate System. Such designation shall be made only upon the written agreement of the State or States involved that such highway will be constructed to meet all the standards of a highway on the Interstate System within twelve years of the date of the agreement between the Secretary and the State or States involved. The mileage of any highway designated as a future part of 84 Stat. 1737the Interstate System under this subsection shall not be charged against the limitations established by the first sentence of section 103(d) of this title. The designation of a highway as a future part of the Interstate System under this subsection shall create no Federal financial responsibility with respect to such highway except that Federal-aid highway funds otherwise available to the State or States involved for the construction of Federal-aid primary system highways may be used for the reconstruction of a highway designated as a route on the Interstate System under this subsection. In the event that the State or States involved have not substantially completed the construction of any highway designated under this subsection within the time provided for in the agreement between the Secretary and State or States involved, the Secretary shall remove the designation of such highway as a future part of the Interstate System. Removal of such designation as result of failure to comply with the agreement provided for in this subsection shall in no way prohibit the Secretary from designating such route as part of the Interstate System pursuant to subsection (a) of this section or under any other provision of law providing for addition to the Interstate System. No law, rule, regulation, map, document, or other record of the United States, or of any State or political subdivision thereof, shall refer to any highway under this section, nor shall any such highway be signed or marked, as a highway on the Interstate System until such time as such highway is constructed to the geometric and construction standards for the Interstate System and has been designated as a part of the Interstate System.”