Page:United States Statutes at Large Volume 70.djvu/436

 380

PUBLIC LAW 627-JUNE 29, 1966

[jO S T A T.

reserved public lands and nontaxable Indian lands, individual and tribal, exceeding 5 per centum of the total area of all lands therein, equal to the percentage that the area of such lands in such State is of its total area: Provided, That such Federal share payable on any project in any State shall not exceed 95 per centum of the total cost of such project. (f) AVAILABILITY FOR EXPENDITURE.—Any sums apportioned to any State under the provisions of this section shall be available for expenditure in that State for two years after the close of the fiscal year for which such sums are authorized: Provided, That such funds for any fiscal year shall be deemed to be expended if a sum equal to the total of the sums apportioned to the State specifically for the Interstate System for such fiscal year and previous fiscal years is covered by formal agreements with the Secretary of Commerce for the construction, reconstruction, or improvement of specific projects under this section. (g) LAPSE OF AMOUNTS APPORTIONED.—Any amount apportioned to the States under the provisions of this section unexpended at the end of the period during which it is available for expenditure under the terms of subsection (f) of this section shall lapse, and shall immediately be reapportioned among the other States m accordance with the provisions of subsection (d) of this section: Provided, That any Interstate System funds released by the payment of the final voucher or by the modification of the formal project agreement shall be credited to the Interstate System funds previously apportioned to the State and be immediately available for expenditure. (h)

CONSTRUCTION BY STATES IN ADVANCE OF APPORTIONMENT.—

In any case in which a State has obligated all funds apportioned to it under this section and proceeds, subsequent to the date of enactment of this Act, to construct (without the aid of Federal funds) any project (including one or more parts of any project) on the Interstate System, as designated at that time, in accordance with all procedures and all requirements applicable to projects financed under the provisions of this section (except insofar as such procedures and requirements limit a State to the construction of projects with the aid of Federal funds previously apportioned to i t), the Secretary of Commerce, upon application by such State and his approval of such application, is authorized, whenever additional funds are apportioned to such State under this section, to pay to such State from such funds the Federal share of the costs of construction of such project: Provided, That prior to construction of any such project, the plans and specifications therefor shall have been approved by the Secretary of Commerce in the same manner as other projects on the Interstate System: Provided further, That any such project shall conform to the standards adopted under subsection (i). In determining the apportionment for any fiscal year under the provisions of subsection (d) of this section, any such project constructed by a State without the aid of Federal funds shall not be considered completed until an application under the provisions of this subsection with respect to such project has been approved by the Secretary of Commerce. (i) STANDARDS.—The geometric and construction standards to be adopted for the Interstate System shall be those approved by the Secretary of Commerce in cooperation with the State highway departments. Such standards shall be adequate to accommodate the types and volumes of traffic forecast for the year 1975. The rightof-way width of the Interstate System shall be adequate to permit construction of projects on the Interstate System up to such standards. The Secretary of Commerce shall apply such standards uniformly throughout the States. Such standards shall be adopted by

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