1024 LAWS OF MARYLAND [CH. 506

of the highway, or so as to endanger the property and life
or limb of any person, or without due regard to wear upon
said highway, so as not unnecessarily or unreasonably to dam-
age the same, provided that nothing contained in this sub-
section shall apply to the owner or operator of any traction
engine used exclusively for propelling agricultural or farm-
ing implements not designed for hauling purposes on account
of its driving wheels being equipped with standard cleats.

(2) SOLID TIRE MOTOR VEHICLES.

The maximum rate of speed for motor vehicles equipped
wholly or in part with solid tires which motor vehicles, includ-
ing the weight of the truck and the load thereon, weigh two
tons or less, shall be twenty-five miles per hour. The maxi-
mum rate of speed for motor vehicles equipped wholly or in
part with solid tires which motor vehicles, including the
weight of the truck and the load thereon, weigh in excess
of two tons and not in excess of six tons, shall be fifteen miles
an hour. The maximum rate of speed for motor vehicles
equipped wholly or in part with solid tires which motor
vehicles, including the weight of the truck and the load there-
on, weigh in excess of six tons, shall be twelve miles an hour.
The maximum rate of speed of all traction engines or other
iron tired engines shall be six miles an hour. No motor ve-
hicle in excess of ninety inches in width, except traction
engines, shall be operated on any 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 be so operated in which the limit of load per inch in
width of tires shall exceed six hundred and fifty pounds,
without the special permission of the State Roads Commis-
sion in the case of a road under its jurisdiction, or the per-
mission 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, and no motor vehicle of which the weight of the
truck and the load combined exceeds ten tons shall be oper-
ated 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 having a rated carrying capacity of over
five tons, and, except as aforesaid, no motor vehicle having