R909-2-5. Legal Weight Limitations

(1) Except as otherwise provided in this section, operating a vehicle that exceeds the maximum gross and axle weight limitations described in Table 2 is prohibited. TABLE 2 Maximum Gross and Axle Weight Limitations Axles Weight Single Wheel 10,500 pounds Single Axle 20,000 pounds Tandem Axle 34,000 pounds Tridem Axle Must comply with the bridge formula Gross Vehicle Weight 80,000 pounds (2) An overweight permit must be obtained to authorize any exception to the maximum weight limitations described in Table 2. (3) The weight limitation described in Table 2 does not apply to a covered heavy-duty tow and recovery vehicle. (4) Emergency vehicles may exceed the weight limits described in Table 2 with the following limitations: (a) 24,000 pounds on a single steering axle; (b) 33,500 pounds on a single-drive axle; (c) 62,000 pounds on a tandem axle; (d) 52,000 pounds on a tandem rear drive steer axle; and (e) 86,000 pounds gross vehicle weight. (5) A vehicle fueled primarily by natural gas or powered primarily by electric battery power may exceed any vehicle weight limit, up to a maximum gross vehicle weight of 82,000 pounds, by any amount that is equal to the difference between: (a)(i) the weight of the vehicle attributable to the natural gas tank and fueling system carried by that vehicle; or (ii) the weight of the vehicle attributable to the electric battery power system; and (b) the weight of a comparable diesel tank and fueling system.