Maryland Code, Transportation § 24-106

(a) This section and § 24-106.1 of this subtitle do not prohibit:

(b) A vehicle with any load may not be driven on any highway unless the vehicle is constructed or loaded to prevent any of its load from dropping, sifting, leaking, or otherwise escaping.

(c) A vehicle with any load may not be driven on any highway unless the load and any covering on the load are fastened securely to prevent the load or covering from becoming loose or detached or from in any way endangering other users of the highway.

(d) This section does not apply to agricultural products in their natural state or residue developed from processing vegetable agricultural products that can be used as feed for animals and that are being transported to a farm. This provision, however, does not prevent the enforcement of any rule or regulation promulgated by the Department of the Environment for the control of air pollution.

(e) The owner of a vehicle from which dirt, debris, or agricultural products has fallen on any highway is responsible for removing that dirt, debris, or agricultural products within a reasonable time.