Pennsylvania Consolidated & Unconsolidated Statutes
Chapter 49 - Size, Weight and Load
Section 4905 - Safety requirements for towed vehicles


(a) Connecting devices and distances.--When one vehicle is towing another, the connection shall be of sufficient strength to pull all weight towed. The distance between the vehicles shall not exceed 15 feet except between any two vehicles transporting poles, pipes, machinery or other objects of a structural nature such that they cannot readily be dismembered.
(b) Red flags and lights.--If the distance between the vehicles exceeds five feet, a red flag or cloth not less than 12 inches square shall be displayed upon the connection centered between the vehicles. During hours of darkness a red light shall be displayed at the same position in lieu of the flag or cloth.
(c) Deflection of trailer wheels.--Every trailer shall be attached to the vehicle drawing it so as to prevent the wheels of the trailer from deflecting more than six inches from the path of the drawing vehicle's wheels.
(d) Safety chains.--Whenever two vehicles are connected by a ball-and-socket type hitch, or pintle hook without a locking device, they shall also be connected by two safety chains of equal length, each safety chain having an ultimate strength at least equal to the gross weight of the towed vehicles. The safety chains shall be crossed and connected to the towed and towing vehicle and to the tow bar so as to prevent the tow bar from dropping to the ground in the event the tow bar fails or becomes disconnected. The safety chains shall have no more slack than is necessary to permit proper turning.
(e) Obstructed lighting equipment.--Whenever the rear running lights, stop lights, turn signals or hazard warning lights required by the provisions of Chapter 43 (relating to lighting equipment) are obstructed by the load on a vehicle or by a towed vehicle or its load, lighting equipment shall be displayed on the rear of the towed vehicle or load equivalent to the obstructed lights or signals, except in the case of implements of husbandry or commercial implements of husbandry displaying the slow-moving vehicle emblem and operating between sunrise and sunset.
(f) Penalty for violation of subsection (e).--
(1) A person who operates a commercial motor vehicle, as defined in section 1603 (relating to definitions), in violation of subsection (e) commits a summary offense and shall, upon conviction, be sentenced to pay a fine of $300 for each violation.
(2) A person who operates a motor vehicle other than a commercial motor vehicle, as defined in section 1603, in violation of subsection (e) commits a summary offense and shall, upon conviction, be sentenced to pay a fine of not less than $50 nor more than $100.
(June 23, 1981, P.L.98, No.35, eff. 60 days; Dec. 18, 1992, P.L.1411, No.174, eff. 60 days; Dec. 20, 1995, P.L.669, No.75, eff. 120 days)

1995 Amendment. Act 75 added subsec. (f).
1992 Amendment. Act 174 amended subsec. (e).
Cross References. Section 4905 is referred to in section 4904 of this title.

Structure Pennsylvania Consolidated & Unconsolidated Statutes

Pennsylvania Consolidated & Unconsolidated Statutes

Title 75 - VEHICLES

Chapter 49 - Size, Weight and Load

Extra - Chapter Notes

Section 4901 - Scope and application of chapter

Section 4902 - Restrictions on use of highways and bridges

Section 4903 - Securing loads in vehicles

Section 4904 - Limits on number of towed vehicles

Section 4905 - Safety requirements for towed vehicles

Section 4906 - Fire apparatus and emergency vehicles

Section 4907 - Penalty for violation of chapter

Section 4908 - Operation of certain combinations on interstate and certain other highways

Section 4908.1 - Operation of motor homes on interstate and certain other highways (Repealed)

Section 4909 - Transporting foodstuffs in vehicles used to transport waste

Section 4921 - Width of vehicles

Section 4922 - Height of vehicles

Section 4923 - Length of vehicles

Section 4924 - Limitations on length of projecting loads

Section 4925 - Width of projecting loads on passenger vehicles

Section 4941 - Maximum gross weight of vehicles

Section 4942 - Registered gross weight

Section 4943 - Maximum axle weight of vehicles

Section 4944 - Maximum wheel load

Section 4945 - Penalties for exceeding maximum weights

Section 4946 - Impoundment of vehicles for nonpayment of overweight fines (Repealed)

Section 4947 - Disposition of impounded vehicles and loads (Repealed)

Section 4948 - Maximum weight and seating capacity of buses

Section 4949 - Application to tow trucks

Section 4961 - Authority to issue permits

Section 4962 - Conditions of permits and security for damages

Section 4963 - Exemptions for vehicles used in State highway construction or maintenance

Section 4964 - Oral authorization following emergency or accident

Section 4965 - Single permits for multiple highway crossings

Section 4966 - Permit for movement of quarry equipment

Section 4967 - Permit for movement of implements of husbandry (Repealed)

Section 4968 - Permit for movement during course of manufacture

Section 4969 - Permit for movement of vehicles with oversize wheels and tires (Repealed)

Section 4970 - Permit for movement of construction equipment

Section 4971 - Permit for operation of chemical and fertilizer vehicles (Deleted by amendment)

Section 4972 - Permits for migrant farm vehicles (Repealed)

Section 4973 - Permits for movement of a mobile home, a manufactured home or a modular housing unit and modular housing undercarriage

Section 4974 - Permit for movement of containerized cargo

Section 4975 - Permit for movement of special mobile equipment

Section 4976 - Permit for movement of domestic animal feed and whole or unprocessed grain

Section 4976.1 - Permit for movement of live domestic animals

Section 4976.2 - Permit for movement of eggs

Section 4977 - Permit for movement of wooden structures

Section 4978 - Permit for movement of building structural components

Section 4979 - Permit for movement of particleboard or fiberboard used in the manufacture of ready-to-assemble furniture

Section 4979.1 - Permit for movement of bulk refined oil

Section 4979.2 - Permit for movement of waste coal, beneficial combustion ash or limestone

Section 4979.3 - Permit for movement of float glass or flat glass for use in construction and other end uses

Section 4979.4 - Permit for movement of self-propelled cranes

Section 4979.5 - Permit for movement of nonhazardous liquid glue

Section 4979.6 - Permit for movement of waste tires

Section 4981 - Weighing and measurement of vehicles

Section 4982 - Reducing or readjusting loads of vehicles

Section 4983 - Penalty for failure to obey police officer (Repealed)