An Act amending "The Vehicle Code," approved April 29, 1959 (P. L. 58, No. 32), creating additional classes of commercial motor vehicles and truck tractors, prescribing registration fees therefor, prescribing maximum gross weights of combinations of which such additional classes are a part, changing penalties; providing for the Department of Transportation to construct stationary scales and buildings to house such scales on the interstate highway system; authorizing the state poliice to have certain vehicles and tractors weighed at Department of Transportation stationary scales on the interstate highway system for violations thereon; making provision for distribution of certain fines, penalties and forfeited bail and providing for different effective dates and granting the secretary the power to exclude certain vehicles from certain highways.