An Act amending Title 75 (Vehicles) of the Pennsylvania Consolidated Statutes, further providing for wheel chairs and electrical mobility devices, for handicapped plate and placard and for railroad crossings; providing for special registration plates for Vietnam veterans; for an Olympic registration plate; further providing for permits for movements of goods during manufacture, for the maximum height of vehicles and for permits for movement of wooden structures; prohibiting use of dyed diesel fuel; authorizing agents to perform inspections; authorizing the Commonwealth to enter into agreements with private firms for the development, financing, design, construction and operation of highways; providing for the powers and duties of the Department of Transportation, for studying the feasibility of making existing state highways privately operated highways and for the contracting of maintenance and law enforcement services; and providing penalties.