N.Y. Vehicle & Traffic Law § 385
No person shall operate or move, or cause or knowingly permit to be operated or moved on any highway or bridge thereon, in any county not wholly included within a city, any vehicle or combination of vehicles of a size or weight exceeding the limitations provided for in this section. Except as otherwise specifically provided in subdivision fifteen of this section, no person shall operate or move, or cause or knowingly permit to be operated or moved on any highway or bridge thereon, in any city not wholly included within one county, any vehicle or combination of vehicles of a size or weight exceeding the limitations provided for in the rules and regulations of the city department of transportation of such city adopted pursuant to section sixteen hundred forty-two of this chapter.
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(a)
(ii) If the legislative body of a county not wholly contained within a city determines that any specific segment of the state highway system is not capable of safely accommodating motor vehicles with a width of one hundred two inches, plus safety devices, such body may notify the commissioner of transportation of such determination and request that the commissioner designate such segment as one where the width of motor vehicles may not exceed ninety-six inches, plus safety devices. Before making such notification, such county legislative body shall consult with units of local government within the county in which the specific segment of such system is located, as well as the county legislative body of any county adjacent to the requesting county that might be directly affected by such exemption. As part of such consultations, consideration shall be given to any potential alternative route that:
(c) The provisions of paragraph (a) of this subdivision shall not apply to vehicles and implements or combinations thereof, between twelve and up to seventeen feet in width, used solely for farm purposes when the following requirements are met:
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10. A single vehicle or a combination of vehicles having three axles or more and equipped with pneumatic tires, when loaded, may have a total weight on all axles not to exceed thirty-four thousand pounds, plus one thousand pounds for each foot and major fraction of a foot of the distance from the center of the foremost axle to the center of the rearmost axle. Axles to be counted as provided in subdivision five of this section. In no case, however, shall the total weight exceed eighty thousand pounds except for a vehicle if operated by an engine fueled primarily by natural gas which may have a maximum gross weight of up to eighty-two thousand pounds. For any vehicle or combination of vehicles having a total gross weight less than seventy-one thousand pounds, the higher of the following shall apply:
10-a.
(f) The department of transportation, or other issuing authority, may issue an annual permit for a vehicle designed and constructed to carry loads that are not of one piece or item, which is registered in this state. Motor carriers having apportioned vehicles registered under the international registration plan must either have a currently valid permit at the time this provision becomes effective or shall have designated New York as its base state or one of the eligible jurisdictions of operation under the international registration plan in order to be eligible to receive a permit issued pursuant to subparagraph (i), (ii) or (ii-a) of this paragraph. No permit issued pursuant to this paragraph shall be valid for the operation or movement of vehicles on any state or other highway within any city not wholly included within one county unless such permit was issued by the city department of transportation of such city. Effective January first, two thousand five, no vehicle or combination of vehicles issued a permit pursuant to this paragraph shall cross a bridge designated as an R-posted bridge by the commissioner of transportation or any other permit issuing authority absent a determination by such commissioner or permit issuing authority that the permit applicant has demonstrated special circumstances warranting the crossing of such bridge or bridges and a determination by such commissioner or permit issuing authority that such bridge or bridges may be crossed safely, provided, however, that in no event shall a vehicle or combination of vehicles issued a permit under this paragraph be permitted to cross a bridge designated as an R-posted bridge if such vehicle or combination of vehicles has a maximum gross weight exceeding one hundred two thousand pounds, and provided further, however, that nothing contained herein shall be deemed to authorize any vehicle or combination of vehicles to cross any such bridge within any city not wholly included within one county unless such vehicle or combination of vehicles has been issued a valid permit by the city department of transportation of such city pursuant to this subdivision. No vehicle having a model year of two thousand six or newer shall be issued a permit pursuant to this paragraph unless each axle of such vehicle or combination of vehicles, other than steerable or trackable axles, is equipped with two tires on each side of the axle, any air pressure controls for lift axles are located outside the cab of the vehicle and are beyond the reach of occupants of the cab while the vehicle is in motion, the weight on any grouping of two or more axles is distributed such that no axle in the grouping carries less than eighty percent of any other axle in the grouping and any liftable axle is steerable or trackable; and, further provided, after December thirty-first, two thousand nineteen, no permit shall be issued pursuant to this paragraph to a vehicle of any model year that does not meet the requirements of this provision, except that such permits may be issued prior to January first, two thousand twenty to a vehicle that does not meet the requirement concerning axle grouping weight distribution, but meets all other requirements of this section. A divisible load permit may only be transferred to a replacement vehicle by the same registrant or transferred with the permitted vehicle as part of the sale or transfer of the permit holder's business; or, if the divisible load permit is issued pursuant to subparagraph (iv), (v) or (vi) of this paragraph for use within the counties of Westchester, Rockland, Nassau, Suffolk, Putnam, Orange and Dutchess and has been effective for the five years preceding a transfer of such permit, the permit may be transferred with the permitted vehicle in the sale of the permitted vehicle to the holder of a permit issued pursuant to subparagraph (iv), (v) or (vi) of this paragraph for use within the counties of Westchester, Rockland, Nassau, Suffolk, Putnam, Orange and Dutchess. If a permit holder operates a vehicle or combination of vehicles in violation of any posted weight restriction, the permit issued to such vehicle or combination of vehicles shall be deemed void as of the next day and shall not be reissued for a period of twelve calendar months. Until June thirtieth, nineteen hundred ninety-four, no more than sixteen thousand power units shall be issued annual permits by the department for any twelve-month period in accordance with this paragraph. After June thirtieth, nineteen hundred ninety-four, no more than sixteen thousand five hundred power units shall be issued annual permits by the department for any twelve-month period. After December thirty-first, nineteen hundred ninety-five, no more than seventeen thousand power units shall be issued annual permits by the department for any twelve-month period. After December thirty-first, two thousand three, no more than twenty-one thousand power units shall be issued annual permits by the department for any twelve-month period. After December thirty-first, two thousand five, no more than twenty-two thousand power units shall be issued annual permits by the department for any twelve-month period. After December thirty-first, two thousand six, no more than twenty-three thousand power units shall be issued annual permits by the department for any twelve-month period. After December thirty-first, two thousand seven, no more than twenty-four thousand power units shall be issued annual permits by the department for any twelve-month period. After December thirty-first, two thousand eight, no more than twenty-five thousand power units shall be issued annual permits by the department for any twelve-month period. After December thirty-first, two thousand sixteen, no more than twenty-seven thousand power units shall be issued annual permits by the department for any twelve-month period. Whenever permit application requests exceed permit availability, the department shall renew annual permits that have been expired for less than four years which meet program requirements, and then shall issue permit applicants having less than three divisible load permits such additional permits as the applicant may request, providing that the total of existing and new permits does not exceed three. Remaining permits shall be allocated by lottery in accordance with procedures established by the commissioner in rules and regulations. The department of transportation may issue a seasonal agricultural permit in accordance with subparagraphs (i), (ii) and (iii) of this paragraph that will be valid for four consecutive months with a fee equal to one-half the annual permit fees established under this subdivision. For a vehicle issued a permit in accordance with subparagraphs (iii), (iv), (v) and (vi) of this paragraph, such a vehicle must have been registered in this state prior to January first, nineteen hundred eighty-six or be a vehicle or combination of vehicles which replace such type of vehicle which was registered in this state prior to such date provided that the manufacturer's recommended maximum gross weight of the replacement vehicle or combination of vehicles does not exceed the weight for which a permit may be issued and the maximum load to be carried on the replacement vehicle or combination of vehicles does not exceed the maximum load which could have been carried on the vehicle being replaced or the registered weight of such vehicle, whichever is lower, in accordance with the following subparagraphs:
16. The provisions of this section relating to the maximum dimension and weight limitations of vehicles shall not be applicable to any vehicle or combination of vehicles proceeding to or from the New York state thruway while being operated at the following locations, provided, however, that the maximum dimensions and weight limitations of such a vehicle or combination of vehicles are in compliance with those applicable to the New York state thruway;
(o)
17-a. Except over any highway which is a part of a state interstate route:
17-b. Except over any highway which is a part of a state interstate route, the following weight limits shall apply to any fire vehicle equipped with pneumatic tires.
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