Regulation .15 Traction-Assisting Devices, if Specified.

Automatic chains may be installed.

Sanders, when required or used, shall:

(1)

Be of the hopper cartridge valve type;

(2)

Have a metal hopper with all interior surfaces treated to prevent condensation of moisture;

(3)

Be of at least 100-pound (grit) capacity and refillable from the exterior of the vehicle only;

(4)

Have a cover on the filler opening of the hopper, which screws into place, sealing the unit air tight;

(5)

Have discharge tubes extending to the front of each rear wheel under the fender;

(6)

Have nonclogging discharge tubes which shall have slush-proof, nonfreezing nozzles;

(7)

Be operated by an electric switch with a telltale light mounted on the instrument panel;

(8)

Be exclusively driver controlled; and

(9)

Have a gauge to indicate that the hoppers need refilling when they are 1/4 full.