ARTICLE 1. Axle Limits [35550. - 35559.]

Cal. Vehicle Code - VEH 1.
in effect

Cal. Vehicle Code - VEH § 35550. Section 35550.

(a) The gross weight imposed upon the highway by the wheels on any one axle of a vehicle shall not exceed 20,000 pounds and the gross weight upon any one wheel, or wheels, supporting one end of an axle, and resting upon the roadway, shall not exceed 10,500 pounds. (b) The gross weight limit provided for weight bearing upon any one wheel, or wheels, supporting one end of an axle shall not apply to vehicles the loads of which consist of livestock. (c) The maximum wheel load is the lesser of the following: (1) The load limit established by the tire manufacturer, as molded on at least one sidewall of the tire. (2) A load of 620 pounds per lateral inch of tire width, as determined by the manufacturer’s rated tire width as molded on at least one sidewall of the tire for all axles except the steering axle, in which case paragraph (1) applies.

Cal. Vehicle Code - VEH § 35551. Section 35551.

(a) Except as otherwise provided in this section or Section 35551.5, the total gross weight in pounds imposed on the highway by any group of two or more consecutive axles shall not exceed that given for the respective distance in the following table: Distance in feet between the extremes of any group of 2 or more consecutive axles 2 axles 3 axles 4 axles 5 axles 6 axles 4 34,000 34,000 34,000 34,000 34,000 5 34,000 34,000 34,000 34,000 34,000 6 34,000 34,000 34,000 34,000 34,000 7 34,000 34,000 34,000 34,000 34,000 8 34,000 34,000 34,000 34,000 34,000 9 39,000 42,500 42,500 42,500 42,500 10 40,000 43,500 43,500 43,500 43,500 11 40,000 44,000 44,000 44,000 44,000 12 40,000 45,000 50,000 50,000 50,000 13 40,000 45,500 50,500 50,500 50,500 14 40,000 46,500 51,500 51,500 51,500 15 40,000 47,000 52,000 52,000 52,000 16 40,000 48,000 52,500 52,500 52,500 17 40,000 48,500 53,500 53,500 53,500 18 40,000 49,500 54,000 54,000 54,000 19 40,000 50,000 54,500 54,500 54,500 20 40,000 51,000 55,500 55,500 55,500 21 40,000 51,500 56,000 56,000 56,000 22 40,000 52,500 56,500 56,500 56,500 23 40,000 53,000 57,500 57,500 57,500 24 40,000 54,000 58,000 58,000 58,000 25 40,000 54,500 58,500 58,500 58,500 26 40,000 55,500 59,500 59,500 59,500 27 40,000 56,000 60,000 60,000 60,000 28 40,000 57,000 60,500 60,500 60,500 29 40,000 57,500 61,500 61,500 61,500 30 40,000 58,500 62,000 62,000 62,000 31 40,000 59,000 62,500 62,500 62,500 32 40,000 60,000 63,500 63,500 63,500 33 40,000 60,000 64,000 64,000 64,000 34 40,000 60,000 64,500 64,500 64,500 35 40,000 60,000 65,500 65,500 65,500 36 40,000 60,000 66,000 66,000 66,000 37 40,000 60,000 66,500 66,500 66,500 38 40,000 60,000 67,500 67,500 67,500 39 40,000 60,000 68,000 68,000 68,000 40 40,000 60,000 68,500 70,000 70,000 41 40,000 60,000 69,500 72,000 72,000 42 40,000 60,000 70,000 73,280 73,280 43 40,000 60,000 70,500 73,280 73,280 44 40,000 60,000 71,500 73,280 73,280 45 40,000 60,000 72,000 76,000 80,000 46 40,000 60,000 72,500 76,500 80,000 47 40,000 60,000 73,500 77,500 80,000 48 40,000 60,000 74,000 78,000 80,000 49 40,000 60,000 74,500 78,500 80,000 50 40,000 60,000 75,500 79,000 80,000 51 40,000 60,000 76,000 80,000 80,000 52 40,000 60,000 76,500 80,000 80,000 53 40,000 60,000 77,500 80,000 80,000 54 40,000 60,000 78,000 80,000 80,000 55 40,000 60,000 78,500 80,000 80,000 56 40,000 60,000 79,500 80,000 80,000 57 40,000 60,000 80,000 80,000 80,000 58 40,000 60,000 80,000 80,000 80,000 59 40,000 60,000 80,000 80,000 80,000 60 40,000 60,000 80,000 80,000 80,000 (b) In addition to the weights specified in subdivision (a), two consecutive sets of tandem axles may carry a gross weight of 34,000 pounds each if the overall distance between the first and last axles of the consecutive sets of tandem axles is 36 feet or more. The gross weight of each set of tandem axles shall not exceed 34,000 pounds and the gross weight of the two consecutive sets of tandem axles shall not exceed 68,000 pounds. (c) The distance between axles shall be measured to the nearest whole foot. When a fraction is exactly six inches, the next larger whole foot shall be used. (d) This section does not affect the right to prohibit the use of any highway or any bridge or other structure thereon in the manner and to the extent specified in Article 4 (commencing with Section 35700) and Article 5 (commencing with Section 35750) of this chapter. (e) The gross weight limits expressed by this section and Section 35550 shall include all enforcement tolerances.

Cal. Vehicle Code - VEH § 35551.5. Section 35551.5.

(a) The provisions of this section shall apply only to combinations of vehicles which contain a trailer or semitrailer. Each vehicle in such combination of vehicles, and every such combination of vehicles, shall comply with either Section 35551 or with subdivisions (b), (c), and (d) of this section. (b) The gross weight imposed upon the highway by the wheels on any one axle of a vehicle shall not exceed 18,000 pounds and the gross weight upon any one wheel, or wheels, supporting one end of an axle and resting upon the roadway, shall not exceed 9,500 pounds, except that the gross weight imposed upon the highway by the wheels on any front steering axle of a motor vehicle shall not exceed 12,500 pounds. The gross weight limit provided for weight bearing upon any one wheel, or wheels, supporting one end of an axle shall not apply to vehicles the loads of which consist of livestock. The following vehicles are exempt from the front axle weight limits specified in this subdivision: (1) Trucks transporting vehicles. (2) Trucks transporting livestock. (3) Dump trucks. (4) Cranes. (5) Buses. (6) Transit mix concrete or cement trucks, and trucks that mix concrete or cement at, or adjacent to, a jobsite. (7) Motor vehicles that are not commercial vehicles. (8) Vehicles operated by any public utility furnishing electricity, gas, water, or telephone service. (9) Trucks or truck tractors with a front axle at least four feet to the rear of the foremost part of the truck or truck tractor, not including the front bumper. (10) Trucks transporting garbage, rubbish, or refuse. (11) Trucks equipped with a fifth wheel when towing a semitrailer. (12) Tank trucks which have a cargo capacity of at least 1,500 gallons. (13) Trucks transporting bulk grains or bulk livestock feed. (c) The total gross weight with load imposed on the highway by any group of two or more consecutive axles of a vehicle in such combination of vehicles or of such combination of vehicles where the distance between the first and last axles of the two or more consecutive axles is 18 feet or less shall not exceed that given for the respective distance in the following table: Distance in feet Allowed load in between first and pounds on group last axles of group of axles 4 32,000 5 32,000 6 32,200 7 32,900 8 33,600 9 34,300 10 35,000 11 35,700 12 36,400 13 37,100 14 43,200 15 44,000 16 44,800 17 45,600 18 46,400 (d) The total gross weight with load imposed on the highway by any vehicle in such combination of vehicles or of such combination of vehicles where the distance between the first and last axles is more than 18 feet shall not exceed that given for the respective distances in the following table: Distance Allowed load in feet in pounds 19 47,200 20 48,000 21 48,800 22 49,600 23 50,400 24 51,200 25 55,250 26 56,100 27 56,950 28 57,800 29 58,650 30 59,500 31 60,350 32 61,200 33 62,050 34 62,900 35 63,750 36 64,600 37 65,450 38 66,300 39 68,000 40 70,000 41 72,000 42 73,280 43 73,280 44 73,280 45 73,280 46 73,280 47 73,280 48 73,280 49 73,280 50 73,280 51 73,280 52 73,600 53 74,400 54 75,200 55 76,000 56 or over 76,800 (e) The distance between axles shall be measured to the nearest whole foot. When a fraction is exactly six inches, the next larger whole foot shall be used. (f) The gross weight limits expressed by this section shall include all enforcement tolerances. (g) Nothing in this section shall affect the right to prohibit the use of any highway or any bridge or other structure thereon in the manner and to the extent specified in Article 4 (commencing with Section 35700) and Article 5 (commencing with Section 35750) of Chapter 5 of Division 15. (h) The Legislature, in enacting this section, does not intend to increase, and this section shall not be construed to allow, statutory weights any greater than existed prior to January 1, 1976.

Cal. Vehicle Code - VEH § 35552. Section 35552.

(a) This section applies only to trucks and vehicle combinations while transporting loads composed solely of logs. (b) One set of tandem axles of such a truck or vehicle combination shall be deemed to be in compliance with Section 35551 if the total gross weight of 34,000 pounds on such a set that is permitted by Section 35551 is not exceeded by more than 1,500 pounds. In addition, such a truck and vehicle combination that has two consecutive sets of tandem axles shall be deemed to be in compliance with Section 35551 if such consecutive sets of tandem axles do not carry a combined total gross weight of more than 69,000 pounds, if the total gross weight on any one such set does not exceed 35,500 pounds, and if the overall distance between the first and last axle of such consecutive sets of tandem axles is 34 feet or more. All such truck and vehicle combinations shall be subject to all other provisions of Section 35551 or any other provision made applicable to the total gross weight of such a truck or vehicle combination in lieu of Section 35551. (c) The gross weight limits expressed in this section shall include all enforcement tolerances. (d) If any total gross weight permitted by this section is exceeded, the allowed weight in pounds set forth in subdivision (a) of Section 35551 shall be the maximum permitted weight for purposes of determining the amount of fine for such violation as specified in the table in Section 42030; except that, whenever the violation is for exceeding the total gross weight for two consecutive sets of tandem axles, and if the overall distance between the first and last axle of such sets is 34 feet or more, the allowed weight on the two consecutive sets shall be 68,000 pounds. (e) This section shall have no application to highways which are a part of the National System of Interstate and Defense Highways (as referred to in subdivision (a) of Section 108 of the Federal-aid Highway Act of 1956). This section may be cited as the Christensen-Belotti Act.

Cal. Vehicle Code - VEH § 35553. Section 35553.

The provisions of this article shall not apply to any vehicle in the immediate vicinity of an unloading or loading area while actually preparing for or in the process of unloading or loading, provided any overload is incidental to and necessitated by such action; and provided that such action does not occur on a bridge or highway structure. This section shall have no application to highways which are a part of the national system of interstate and defense highways (as referred to in subdivision (a) of Section 108 of the Federal-aid Highway Act of 1956).

Cal. Vehicle Code - VEH § 35554. Section 35554.

(a) (1) Notwithstanding Section 35550, the maximum gross weight on any one axle of a bus shall not exceed 20,500 pounds. (2) This subdivision does not apply to a transit bus procured through a solicitation process pursuant to which a solicitation was issued before January 1, 2016. This subdivision does not apply to a bus purchased during an option period in a multiyear contract to purchase transit buses that is entered into before January 1, 2016, by a publicly owned or operated transit system, or an operator of a transit system under contract with a publicly owned or operated transit system, provided, however, that the option period does not exceed five years from the date of the original contract, or extend beyond January 1, 2021, whichever is earlier. (b) A transit bus is not subject to Section 35550. (c) Notwithstanding subdivision (a), the following provisions shall apply to a transit bus: (1) The curb weight on any one axle of a transit bus procured through a solicitation process pursuant to which a solicitation was issued between January 1, 2016, and December 31, 2018, inclusive, shall not exceed 23,000 pounds. (2) The curb weight on any one axle of a transit bus procured through a solicitation process pursuant to which a solicitation was issued on or after January 1, 2019, shall not exceed 22,000 pounds. (d) Notwithstanding subdivisions (a) and (c), the following provisions shall apply to an articulated transit bus or zero-emission transit bus: (1) The curb weight on any one axle of an articulated transit bus or zero-emission transit bus procured through a solicitation process pursuant to which a solicitation was issued between January 1, 2016, and December 31, 2017, inclusive, shall not exceed 25,000 pounds. (2) The curb weight on any one axle of an articulated transit bus or zero-emission transit bus procured through a solicitation process pursuant to which a solicitation was issued between January 1, 2018, and December 31, 2019, inclusive, shall not exceed 24,000 pounds. (3) The curb weight on any one axle of an articulated transit bus or zero-emission transit bus procured through a solicitation process pursuant to which a solicitation was issued between January 1, 2020, and December 31, 2021, inclusive, shall not exceed 23,000 pounds. (4) The curb weight on any one axle of an articulated transit bus or zero-emission transit bus procured through a solicitation process pursuant to which a solicitation was issued on or after January 1, 2022, shall not exceed 22,000 pounds. (e) Nothing in this article shall be construed to authorize a vehicle described in paragraph (2) of subdivision (a) or described in subdivision (c) or (d) to be operated in violation of Section 35753. (f) A transit operator operating an articulated transit bus shall, by July 1, 2016, provide notice to all cities and counties in whose jurisdiction the bus will operate in the upcoming calendar year, identifying the approximate routes upon which the bus is expected to be scheduled for service, including the names of streets and roads upon which that service is likely to take place. Thereafter, a transit operator operating an articulated transit bus shall annually provide notice by July 1, to all cities and counties in whose jurisdiction the bus will operate in the upcoming calendar year, identifying any changes to the service on those routes and any new routes upon which the bus is expected to be scheduled for the upcoming year. The notice shall include data from information provided by the bus manufacturer to the transit operator, identifying the weight of the articulated bus. (g) For purposes of this section, the term “curb weight” means the total weight of a fully loaded transit bus, including maximum fuel, oil, and coolant, and all equipment used in the normal operation of the bus, except without passengers or a driver. (h) Notwithstanding subdivisions (a) to (g), inclusive, a transit bus shall not operate on the Dwight D. Eisenhower System of Interstate and Defense Highways in excess of the weight limitation for transit buses specified in federal law. (i) If the gross weight imposed upon the highway by the wheels on any one axle of a transit bus exceeds 20,000 pounds, the axle shall be supported by four wheels bearing load upon the highway.

Cal. Vehicle Code - VEH § 35555. Section 35555.

(a) During the period commencing September 15 of each year and ending March 15 of the following year, the weight limitations of Section 35551 do not apply to any cotton module mover or any truck tractor pulling a semitrailer that is a cotton module mover, when operated as follows: (1) Laterally across a state highway at grade of the state highway. (2) Upon any county highway within the Counties of Butte, Colusa, Fresno, Glenn, Imperial, Kern, Kings, Madera, Merced, Riverside, Sacramento, San Benito, San Bernardino, San Joaquin, Stanislaus, Sutter, Tehama, Tulare, Yolo, and Yuba, except as prohibited or limited on county highways or portions thereof by resolution of the county board of supervisors having jurisdiction. (b) A cotton module mover may be operated upon a state highway within the counties and during the period set forth in subdivision (a) if all of the following are met: (1) The operator is in possession of a driver’s license of the class required for operation of the mover. (2) The mover is operated in compliance with Sections 24002 and 24012; Article 1 (commencing with Section 24250) of, Article 3 (commencing with Section 24600) of, Article 4 (commencing with Section 24800) of, Article 5 (commencing with Section 24950) of, Article 6 (commencing with 25100) of, Article 9 (commencing with 25350) of, Article 11 (commencing with 25450) of, Chapter 2 of Division 12; and Article 2 (commencing with 26450) and Article 3 (commencing with 26502) of Chapter 3 of Division 12. (3) The mover does not exceed the maximum allowable gross axle weight for tandem axles set forth in Section 35551 by more than 6,000 pounds. (4) The operator of a mover that exceeds the maximum allowable gross axle weight for tandem axle vehicles as set forth in Section 35551 shall possess a commercial driver’s license as defined in subdivision (a) of Section 15210. (c) This section does not apply to those highways designated by the United States Department of Transportation as national network routes.

Cal. Vehicle Code - VEH § 35557. Section 35557.

(a) Only upon request to, and approval by, and in accordance with regulations adopted by, the Director of Food and Agriculture, all of the following are available for inspection by district attorneys and are subject to legal process for admission in any criminal or civil proceeding arising out of a violation of this chapter: (1) Vehicle weight certificates issued on or after January 1, 1984, pursuant to Chapter 7 (commencing with Section 12700), Chapter 7.3 (commencing with Section 12740), and Chapter 7.7 (commencing with Section 12770) of Division 5 of the Business and Professions Code. (2) Other records of vehicle weight relating to those certificates. (3) Copies of those certificates and records. (b) All certificates, records, and copies thereof, issued before January 1, 1984, shall not be available for inspection and are not admissible in any criminal or civil proceedings arising out of a violation of this chapter.

Cal. Vehicle Code - VEH § 35558. Section 35558.

Any person or business which has an axle weight scale at its loading facilities shall, upon the request of the driver, weigh any load being transported for that person or business before the vehicle leaves the loading facility. In a port facility, this requirement only applies if the scale is located in outbound lanes. The request to weigh shall be based upon a reasonable assumption that the load is overweight.

Cal. Vehicle Code - VEH § 35559. Section 35559.

(a) (1) Notwithstanding any provision of this article, the power unit of a near-zero emission or zero-emission vehicle may exceed the allowable gross weight limits by up to a maximum of 2,000 pounds. (2) The maximum allowance may apply to a single power unit or be distributed between more than one power unit, but shall not exceed a total of 2,000 pounds across a single vehicle or combination of vehicles. (3) The maximum gross vehicle weight shall not exceed 82,000 pounds. (b) This section shall not be construed to exempt any near-zero-emission or zero-emission vehicle from the weight limits prescribed in Article 2 (commencing with Section 35600), Article 3 (commencing with Section 35650), Article 4 (commencing with Section 35700), or Article 5 (commencing with Section 35750) of this chapter. (c) This section shall not be construed to exempt any near-zero-emission or zero-emission vehicle from tire weight limits imposed by this code or in regulations adopted by the Department of the California Highway Patrol. (d) For purposes of this section, “power unit” means a single unit or a combination of units in a near-zero emission or zero-emission vehicle that provide motive power to a drive system independent of any other power source. (e) The terms “near-zero-emission vehicle” and “zero-emission vehicle” have the same meanings as defined in subdivisions (c) and (d) of Section 44258 of the Health and Safety Code. (f) This section applies only to the extent expressly authorized by federal law.
Source: CA Legislative Counsel Bulk DataURL: https://downloads.leginfo.legislature.ca.gov/pubinfo_2025.zipFetched: 6/27/2026

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