# COMAR Title 11 — Department of Transportation

## Subtitle 19 — Motor Vehicle Administration — School Vehicles

### Chapter 02 — Type I School Vehicles — Construction Standards

#### Regulation .15 Traction-Assisting Devices, if Specified.

*COMAR 11.19.02.15*

A. Automatic chains may be installed.

B. 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.