(a) The weight limitations of Section 621.101 do not apply to an emergency vehicle.(b) The weight of an emergency vehicle may not exceed the greater of:(1) the manufacturer's gross vehicle weight capacity or axle design rating; or(2) including all enforcement tolerances, a:(A) gross weight of 86,000 pounds;(B) single steering axle weight of 24,000 pounds;(C) single drive axle weight of 33,500 pounds;(D) tandem axle weight of 62,000 pounds; or(E) tandem rear drive steer axle weight of 52,000 pounds.(c) In this section, 'emergency vehicle' means a vehicle designed to be used under emergency conditions:(1) to transport personnel and equipment; and(2) to support the suppression of fires and mitigation of other hazardous situations. Acts 1995, 74th Leg., ch. 165, Sec. 1, eff. Sept. 1, 1995.Amended by: Acts 2021, 87th Leg., R.S., Ch. 411 (S.B. 1815), Sec. 3, eff. September 1, 2021.