# COMAR Title 11 — Department of Transportation

## Subtitle 07 — Maryland Transportation Authority

### Chapter 01 — Transportation of Hazardous Materials

#### Regulation .05 Bridge and Highway Restrictions.

*COMAR 11.07.01.05*

A. Vehicles transporting the following radioactive materials are exempt from the requirements in §B of this regulation:

  (1) Radionuclides for medical, industrial, agricultural, or research purposes;

  (2) Natural uranium metal;

  (3) Depleted uranium;

  (4) Magnesium-thorium alloys in formed shapes (not powdered, and which shall contain not more than 4 percent nominal thorium 232);

  (5) Radium or radon sealed in needles, capsules, or similar platinum-iridium or gold containers used for medical purposes; or

  (6) Manufactured articles, other than liquids, containing radioactive material as component parts, such as clock and instrument dials, electronic tubes, test instruments, watches, X-ray machines, etc.

B. A vehicle may not enter upon any Authority property if its load includes any Class 1 explosives or any radioactive materials except under the following conditions:

  (1) Prior permission shall be granted by the Administrator of the facility or the Administrator’s authorized representative at least 1 hour before intended travel over the facility;

  (2) Operators of the transporting vehicles shall comply with all lawful orders, instructions, and directions of authorized Maryland Transportation Authority police personnel;

  (3) Vehicles shall remain at least 300 feet behind any vehicle travelling in the same direction on the facility;

  (4) Vehicles transporting Class 1 explosives shall travel at least 2,000 feet from any other vehicle transporting explosives and travelling in the same direction on the facility.