Section, act Pub. L. 93–87, title I, § 133(b) , Aug. 13, 1973 , 87 Stat. 267 , authorized Secretary of Transportation to promulgate regulations establishing guidelines governing any increase in tolls for use of any bridge constructed pursuant to either the General Bridge Act of 1906 or the General Bridge Act of 1946 . Statutory Notes and Related Subsidiaries Study of Toll Bridge Authority; Investigation and Study of Federal Statutes and Regulations; Report to Congress Section 133(a) of Pub. L. 93–87 directed Secretary of Transportation to study the existing Federal laws and regulations governing toll bridges over navigable waters of United States and submit a report containing recommendations regarding action to be taken to assure reasonable nationwide tolls no later than July 1, 1974 , except in the case of the toll bridge at Chester, Illinois, where the Secretary was directed to submit a similar report no later than Dec. 31, 1973 , prior to repeal by Pub. L. 100–17, title I, § 135(f) , Apr. 2, 1987 , 101 Stat. 174 .