A bill to amend title 23, United States Code, to authorize transfer of not more than 20 percent of amounts apportioned to a State for Interstate System highways to the apportionment to the State for Federal-aid secondary system highways.

Amends Federal law relating to Federal-aid highway apportionments to authorize the transfer of 20 percent of apportionments from a State's Interstate System highways to its Federal-aid secondary system highways, if requested by the State highway department and approved by the Governor and Secretary of Transportation.