(a) No vehicle or combination of vehicles shall be operated on any street or highway unless such vehicle or combination of vehicles is so constructed or loaded as to prevent any of its load from dropping, sifting, leaking or otherwise escaping therefrom; except that, sand may be dropped for the purpose of securing traction, or water or other substance may be sprinkled on a roadway in cleaning or maintaining such roadway.
(b) No person shall operate on any street or highway any vehicle or combination of vehicles with any load unless such load and any covering thereon is securely fastened so as to prevent such covering or load from becoming loose, detached or in any manner a hazard to other users of the street or highway.
(W.Va. Code § 17C-17-6)
(c) No person shall carry or convey or cause to be carried or conveyed in any vehicle any earth, sand, gravel, manure, broken stone, dirt, ashes, paper or other rubbish, or any fluid or offensive articles or matter, or any articles whatsoever, so that any part thereof shall or may be scattered, dropped, let fall, blown or spilled therefrom; and, if any such contents are spilled or blown from any vehicle, it shall be the duty of the owner, driver or person in charge thereof to pick up or clean up all of the articles so having fallen, spilled, blown or dropped from such vehicle; and all vehicles conveying foul, dusty or offensive matter of any sort shall have tight bodies and be closely and securely covered so as to prevent the contents from being dropped while being removed, and so as to limit as much as practicable the escape of odors.