A bill to authorize the increase of the Federal share of certain projects under title 23, United States Code.

[AI summary unavailable — showing source text] Authorizes the Secretary of Transportation to approve as the Federal share of the construction cost of an approved State highway project under the Federal-aid secondary system, any percentage of such cost up to one hundred percent. Requires that any increase in the Federal share of a State's construction costs which are made pursuant to this Act be repaid by the State receiving such increase by January 1, 1977, as a condition for Federal approval of future highway projects of such State.…