# Transportation (GTR)

## Title 21. Vehicle Laws -- Rules of the Road

### Subtitle 11. Miscellaneous Rules

#### Section 21-1107

(a) Subject to subsection (c) of this section, this section applies to:

  (1) A truck that has a gross vehicle weight rating of 10,001 pounds or more; and

  (2) A truck/trailer or truck tractor/semitrailer or trailer combination that has a combined gross vehicle weight rating of 10,001 pounds or more.

(b) While a vehicle subject to this section is being operated on a highway:

  (1) The driver may not allow a person to occupy the area of the vehicle primarily intended to carry cargo; and

  (2) A person may not occupy the area of the vehicle primarily intended to carry cargo.

(c) This section does not apply to:

  (1) An attendant delegated to care for livestock;

  (2) A vehicle that is controlled or operated by a farmer and is:

    (i) Used to transport agricultural products, farm machinery, or farm supplies to or from a farm;

    (ii) Not used in the operations of a common or contract motor carrier; and

    (iii) Used within 150 miles of the farmer's farm;

  (3) A vehicle owned or operated by the U.S. Department of Defense if the vehicle is controlled or operated by:

    (i) Active duty military personnel; or

    (ii) A member of the military reserves or National Guard on active duty, including personnel on full-time National Guard duty and personnel on part-time training; or

  (4) A vehicle traveling at a speed of not more than 25 miles per hour.

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Md. Code Ann., Transp. (as displayed at mgaleg.maryland.gov, October 16, 2026)