Pub. L. 85-241, tit. IV, sec. 503

Sec. 503. Any or the amounts named in titles I, II, and III of this Act may, in the discretion of the Secretary concerned, be increased by 5 per centum for projects inside the United States and by 10 per centum for projects outside the United States. However, the total cost of all projects in each such title may not be more than the total amount authorized to be appropriated for projects in that title.