Wyo. Stat. § 40-14-244: No assignment of earnings.

(a) A seller or lessor may not take an assignment of earnings of the buyer or lessee for payment or as security for payment of a debt arising out of a consumer credit sale or a consumer lease. An assignment of earnings in violation of this section is unenforceable by the assignee of the earnings and revocable by the buyer or lessee. This section does not prohibit an employee from authorizing deductions from his earnings if the authorization is revocable.

(b) Notwithstanding the foregoing prohibition, a seller or lessor may take an assignment of commissions or accounts receivable payable to the buyer or lessee for services rendered for payment or as security for payment of a debt arising out of a consumer lease.