2372 ARTICLE 56

weighing in excess of six tons, shall be twenty miles per hour. The weight
of such motor vehicles shall be computed by adding the weight of the
vehicle and the weight of its load. Whenever a trailer is attached to such
vehicle, the weight thereof shall be computed by adding the combined
weights of such vehicle and such trailer and the combined weights of the
loads thereon; provided, however, that when the trailer is equipped with
adequate brakes, the weight shall be computed by adding the weight of the
vehicle and its load, or the weight of the trailer and its load, whichever is
the heavier; and provided further that not more than one trailer shall be
attached to a motor vehicle while operating along any highway of this
State at a greater rate of speed than ten miles per hour. The maximum
rate of speed of all traction or other iron tired engines, and motor vehicles
or trailers equipped wholly or in part with iron tires shall be six miles an
hour. No motor vehicle in excess of ninety-six inches in width, including
the load thereon, except traction engines, shall be operated on any such
highway in this State, and no traction engine in excess of one hundred
inches in width shall be operated on any such highway, nor shall any
motor vehicle equipped with solid tires be so operated of which the total
weight of vehicle and load per inch in width of each tire as such tires are
rated by the tire manufacturers shall exceed six hundred and fifty pounds,
without the special permission of the State Roads Commission in the case
of a road under its jurisdiction, or the permission of the city authorities
in the case of a city street, or the permission of the county authorities in
the case of a county highway, nor shall any such vehicle be operated at
any time on any such tires when the rubber thereon is less than one inch in
thickness, nor where a uniform cross-section of the tire is not maintained,
and no motor vehicle, equipped with four wheels, of which the weight of
the vehicle and the load combined exceeds twenty-five thousand (25,000)
pounds shall be operated on any highway of this State, and no motor
vehicle, equipped with six wheels, of which the weight of the vehicle and
load combined exceeds forty thousand (40,000) pounds, shall be operated
on any highway of this State. Except in the case of motor vehicles now
owned and heretofore registered in this State, no certificate shall be granted
for the registration of any motor vehicle, equipped with four wheels,
having a rated carrying capacity of over five tons, nor of any motor
vehicle, equipped with six wheels, having a rated carrying capacity of
over ten tons, and except as aforesaid, no motor vehicle, equipped with
four wheels, having a greater rated carrying capacity than five tons, and
no motor vehicle, equipped with six wheels, having a greater rated carry-
ing capacity, than ten tons shall be operated over any public highway of
this State, these provisions being absolutely necessary in the opinion of
the General Assembly for the proper protection and continued main-
tenance of the public highways of this State.

(2A) (Weights of Vehicles and Loads.) (a) No commercial motor
vehicle, equipped with solid rubber tires, shall have a gross weight, includ-
ing vehicle and load, of more than forty-two thousand (42,000) pounds,
nor shall any commercial motor vehicle equipped with pneumatic tires have
a gross weight, including vehicle and load, of more than twenty-six thou-
sand (26,000) pounds, for four wheeled vehicle, or a gross weight of more
than thirty-six thousand (36,000) pounds for a six wheeled vehicle.

(b) No truck or tractor with semi-trailer shall have a combined gross
weight of loads and vehicles of more than forty-two thousand (42,000)
pounds.