(a) A vehicle or combination of vehicle and trailer or semitrailer or any other object may be operated upon any highway or bridge, subject to the provisions of section 13a-151 , provided such vehicle or combination of vehicle and trailer or semitrailer or other object meets all the applicable requirements of this section or has been granted a permit under section 14-270 .
(b) The axle weight on any axle and the gross weight of any vehicle or combination of vehicle and trailer or vehicle and semitrailer or any other object, including its load, may not exceed the lesser of the manufacturer's axle weight rating, the manufacturer's gross vehicle weight rating or the following axle and gross weight limits: (1) The weight on any single axle shall not exceed twenty-two thousand four hundred pounds or, in the case of axles spaced less than six feet apart, eighteen thousand pounds on each axle; (2) a two-axle vehicle shall comply with the axle requirements specified in subdivision (1) of this subsection, and shall not exceed a maximum gross vehicle weight of thirty-six thousand pounds; (3) a three-axle vehicle shall comply with the axle requirements specified in subdivision (1) of this subsection and shall not exceed a maximum gross vehicle weight of fifty-three thousand eight hundred pounds; (4) a three-axle combination of vehicle and trailer or vehicle and semitrailer shall comply with the axle requirements specified in subdivision (1) of this subsection and shall not exceed a maximum gross vehicle weight of fifty-eight thousand four hundred pounds; (5) a four-or-more-axle vehicle or combination of vehicle and trailer or vehicle and semitrailer shall comply with the axle requirements specified in subdivision (1) of this subsection and shall not exceed a maximum gross vehicle weight of sixty-seven thousand four hundred pounds; (6) a four-or-more-axle vehicle or combination of vehicle and trailer or vehicle and semitrailer where the distance between the first and last axle is not less than twenty-eight feet shall comply with the axle requirements specified in subdivision (1) of this subsection and shall not exceed a maximum gross vehicle weight of seventy-three thousand pounds; (7) the gross vehicle weight of (A) a bulk milk pickup tanker, or (B) a vehicle or combination of vehicle and trailer or vehicle and semitrailer hauling agricultural commodities shall not exceed one hundred thousand pounds, provided the weight of the bulk milk pickup tanker or such vehicle or combination is permitted under the federal-aid highway amendments of 1974, 88 Stat. 2281, 23 USC 101 et seq., as amended from time to time; and (8) notwithstanding the provisions of this subsection and subsection (e) of this section, a vehicle or combination of vehicle and semitrailer may be operated on any highway or bridge without a written permit, provided it is in compliance with the axle requirements specified in subdivision (1) of this subsection, and provided such vehicle or combination is in compliance with the federal-aid highway amendments of 1974, 88 Stat. 2281, 23 USC 101 et seq., as amended from time to time, including the gross vehicle weight limit of eighty thousand pounds and the following weight distribution formula: