84 STAT. ]
PUBLIC LAW 91-605-DEC. 31, 1970
1721
" (d)(1) Three per centum of the sums authorized to be appropriated for each fiscal year for carrying out subsection (a) of this section shall be available for expenditure only for engineering and economic surveys and investigations, for the planning of future highway programs and the financing thereof, for studies of the economy, safety, and convenience of highway usage and the desirable regulation and equitable taxation thereof, and for research and development, necessary in connection with the planning, design, and maintenance of the highway system, and the regulation and taxation of their use. "(2) I n addition to the percentage provided in paragraph (1) of the subsection, not to exceed 2 per centum of sums authorized to be appropriated for each fiscal year for carrying out subsection (a) of this section may be expended upon request of the Governor and with the approval of the Secretary for the purposes enumerated in paragraph (1) of this subsection. "(e) None of the funds authorized to be appropriated for carrying out this section shall be obligated or expended for maintenance of the highway system, "(f) The provisions of chapters 1 and 5 of this title that are appli- ^^ ^'|^- ^^^5. cable to Federal-aid primary highway funds, other than provisions §2 Stat. 83o. relating to the apportionment formula and provisions limiting the 23 USC soi. expenditure of such funds to the Federal-aid systems, shall apply to the funds authorized to be appropriated to carry out this section, except as determined by the Secretary to be inconsistent with this section." (b) The analysis of chapter 2 of title 23, United States Code, is amended by adding at the end thereof the following: "215. Territories highway development program."
(c) There are hereby authorized to be appropriated for carrying Appropriation. out subsection (a) of section 215 of title 23, United States Code, out of ^"^^' P- 1^20, any sums in the Treasury not otherwise appropriated— (1) not to exceed $2,000,000 per fiscal year for the Virgin Islands, for the fiscal years ending June 30, 1971, June 30, 1972, and June 30, 1973. (2) not to exceed $2,000,000 per fiscal year for Guam for the fiscal years ending June 30, 1971, June 30, 1972, and June 30, 1973. (3) not to exceed $500,000 per fiscal year for American Samoa for the fiscal years ending June 30, 1971, June 30, 1972, and June 30, 1973. (d) Sums authorized to be appropriated for the fiscal year ending June 30, 1971, shall be available for obligation immediately upon enactment of this section in the same manner and to the same extent as if such sums were apportioned under chapter 1 of title 23, United States Code. Sums authorized to be appropriated for the fiscal year ending June 30, 1972, and the fiscal year ending June 30, 1973, shall be available for obligation at the beginning of the fiscal year for which authorized in the same manner and to the same extent as if such sums were apportioned under chapter 1 of title 23, United States Code. DARIEN GAP H I G H W A Y
SEC. 113. (a) Chapter 2 of title 23, United States Code, is further amended by adding at the end thereof the following new section:
- § 216. Darien Gap Highway
" (a) The United States shall cooperate with the Government of the Republic of Panama and with the Government of Colombia in the construction of approximately two hundred and fifty miles of highway in such countries in the location known as the 'Darien Gap' to connect the Inter-American Highway authorized by section 212 of this title with the P a n American Highway System of South America. Such
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