It is unlawful for the owner or any other person, employing or otherwise directing the driver of any vehicle to require or knowingly to permit the operation of the vehicle upon a highway in any manner contrary to law.
Wyo. Stat. Ann. § 31-5-1203
Unlawful acts by persons owning or controlling vehicles
Official source: Wyoming Legislature. Reproduced from public-domain Wyoming statutes; confirm against the official source for the current text. Not legal advice.