56 STAT.] 77TH CONG., 2D SESS.-CH. 450-JUNE 27, 1942 may include depreciation on engineering and road-building equip- ment used, and the amounts received on account of such charges shall be credited to the appropriation concerned: Provided further, That during the fiscal year 1943 the appropriations for the work of the Public Roads Administration shall be available for meeting the expenses of warehouse maintenance and the procurement, care, and handling of supplies, materials, and equipment stored therein for distribution to projects under the supervision of the Public Roads Administration, and for sale and distribution to other Government activities, the cost of such supplies and materials or the value of such equipment (including the cost of transportation and handling) to be reimbursed to appropriations current at the time additional supplies, materials, or equipment are procured, from the appropria- tion chargeable with the cost or value of such supplies, materials, or equipment: Provided further, That the appropriations available to the Public Roads Administration may be used in emergency for medical supplies and services and other assistance necessary for the immediate relief of employees engaged on hazardous work under that Administration: Provided further, That the appropriations for the work of the Public Roads Administration shall be available for the transfer of household goods and effects as provided by the Act of October 10, 1940, and regulations promulgated thereunder; for necessary expenses (not exceeding $9.000) of attendance at meetings and conferences of highway departments, associations, organizations, and other agencies concerned, and (not exceeding $15,000) for the temporary employment, by contract or otherwise, of technical con- sultants and experts without regard to section 3709 of the Revised Statutes, and classification laws. INTER-AMERICAN HIGHWAY For all necessary expenses to enable the President to utilize the services of the Public Roads Administration in fulfilling the obliga- tions of the United States under the Convention on the Pan-Ameri- can Highway between the United States and other American Repub- lics, signed at Buenos Aires, December 23, 1936, and proclaimed September 16, 1937 (51 Stat. 152), for the continuation of coopera- tion with several governments, members of the Pan American Union, in connection with the survey and construction of the Inter-American Highway as provided in Public Resolution, approved March 4, 1929 (45 Stat. 1697), as amended or supplemented, and for performing engineering service in pan-American countries for and upon the request of any agency or governmental corporation of the United States, $100,000 to be derived from the administrative funds provided under the Act of July 11, 1916, as amended or supplemented (23 U. S. C. 21), or as otherwise provided. FFDERAL-AID SECONDARY OR FEEDER ROADS For secondary or feeder roads, including farm-to-market roads, rural free delivery mail roads, and public-school bus routes, $6,000,000, to be immediately available and to remain available until expended, which sum is a part of the amount authorized to be appropriated for the fiscal year 1942, by section 2 of the Act approved September 5, 1940 (54 Stat. 868). ELIMINATION OF GRADE CROSSINGS For the elimination of hazards to life at railroad grade crossings, including the separation or protection of grades at crossings, the reconstruction of existing railroad grade-crossing structures, and the 409 Warehouse mainte- nance, etc. Medical supplies, etc., in emergencies. Transfer of house- hold effects, etc. 54 Stat. 1105. 5 U.S. C . 73c-1. 41u.. .C.§ Fulfillment of U. S. obligations. 39 Stat. 355. 42 Stat. 217.
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