Pennsylvania Consolidated & Unconsolidated Statutes
Chapter 49 - Size, Weight and Load
Section 4923 - Length of vehicles


(a) Motor vehicles.--
(1) Except as provided in paragraph (2), no motor vehicle, including any load and bumpers, shall exceed an overall length of 40 feet.
(2) Paragraph (1) does not apply to the following:
(i) A motor vehicle equipped with a boom or boomlike device if the vehicle does not exceed 55 feet.
(ii) A bus, school bus or motor home which does not exceed 45 feet.
(iii) An articulated bus which does not exceed 63 feet.
(iv) An automobile or boat transporter which does not exceed 45 feet, exclusive of an overhang of not more than three feet on the front and four feet on the rear. An automobile transporter shall not be prohibited from the transport of cargo or general freight on a backhaul if the automobile transporter complies with the weight limitations for a motor vehicle.
(b) Excluded devices.--Devices listed in and meeting the requirements of 23 CFR Pt. 658 Appendix D (relating to devices that are excluded from measurement of the length or width of a commercial motor vehicle) are excluded from measurement of the length of a motor vehicle.
(b.1) Combinations.--
(1) The length of a single trailer being towed by a truck or truck tractor shall not exceed 53 feet. Truck or truck tractors towing trailers equipped with a kingpin shall not be operated when the distance between the kingpin and the center line of the rear axle or rear axle group exceeds 41 feet or, in the case of a trailer used exclusively or primarily to transport vehicles in connection with motor sports competition events, does not exceed 46 feet.
(2) For a double trailer, the length of each trailer being towed in combination by a truck tractor shall not exceed 28 1/2 feet.
(3) The overall length of the combination of a truck tractor with a conventional fifth wheel and an auto or boat transporter shall not exceed 65 feet, exclusive of an overhang of not more than three feet on the front and four feet on the rear of the combination.
(4) The overall length of a stinger-steered auto or boat transporter combination shall not exceed 80 feet, exclusive of an overhang of not more than four feet on the front and six feet on the rear of the combination. A stinger-steered automobile transporter shall not be prohibited from the transport of cargo or general freight on a backhaul if the stinger-steered automobile transporter complies with the weight limitations for a truck tractor and semitrailer combination.
(5) The overall length of a saddle-mount combination shall not exceed 75 feet.
(6) The overall length of a maxi-cube combination shall not exceed 65 feet.
(7) A combination consisting of any tow truck towing a disabled motor vehicle to a place of repairs or other place of safety.
(8) A combination transporting articles that, themselves, do not exceed 70 feet in length and are nondivisible as to length.
(9) The overall length of a towaway trailer transporter combination shall not exceed 82 feet.
(c) Definitions.--As used in this section, the following words and phrases shall have the meanings given to them in this subsection:
"Automobile or boat transporter." A truck of a total length not greater than 45 feet, exclusive of an overhang of not more than three feet on the front and four feet on the rear of the vehicle configured by the manufacturer to haul either automobiles, light trucks or boats.
"Towaway trailer transporter combination." As follows:
(1) a combination of vehicles consisting of a trailer transporter towing unit and two trailers or semitrailers with a total weight that does not exceed 26,000 pounds; and
(2) the trailers or semitrailers carry no property and constitute inventory property of a manufacturer, distributor or dealer of the trailers or semitrailers.
"Trailer transporter towing unit." A power unit that is not used to carry property when operating in a towaway trailer transporter combination.
(June 6, 1979, P.L.39, No.12, eff. imd.; June 18, 1980, P.L.229, No.68, eff. 60 days; July 1, 1981, P.L.197, No.60, eff. imd.; July 7, 1983, P.L.32, No.19, eff. imd.; Dec. 11, 1986, P.L.1530, No.166, eff. 60 days; Feb. 10, 1994, P.L.10, No.2, eff. imd.; Apr. 17, 1997, P.L.6, No.3, eff. 60 days; June 22, 2001, P.L.559, No.37, eff. imd.; Oct. 4, 2002, P.L.845, No.123, eff. 60 days; Nov. 30, 2004, P.L.1667, No.211, eff. 60 days; Oct. 24, 2012, P.L.1407, No.174, eff. 60 days; June 30, 2014, P.L.814, No.85, eff. 60 days; July 20, 2017, P.L.342, No.31, eff. 60 days; June 12, 2018, P.L.204, No.31, eff. 180 days)

2018 Amendment. Act 31 amended subsec. (b.1)(1) and added subsec. (b).
2017 Amendment. Act 31 amended subsecs. (a)(2), (b.1) and (c).
2014 Amendment. Act 85 amended subsec. (a).
1983 Amendment. See section 7 of Act 19 in the appendix to this title for special provisions relating to expiration of amendments authorizing two trailers and long combinations.
Cross References. Section 4923 is referred to in sections 4904, 4924 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)