A bill to amend section 154 of title 23, United States Code, to authorize a speed limit of seventy miles an hour in certain States.

Prohibits the Secretary of Transportation from approving projects in States lying west of the one hundredth meridian which have: (1) a maximum public highway speed limit in excess of 70 miles per hour; or (2) a speed limit not uniformly applicable to all types of motor vehicles if the highway had a uniformly applicable speed limit on November 1, 1973.