011-2 Wyo. Code R. § 2-9
(a) Installment Payment Agreements. Taxpayers may request in writing an installment payment agreement to pay sales or use tax, penalty, and interest on payment terms and conditions the Department may require. The agreement shall be on a form provided by the Department and shall be signed by the Department Director or Excise Division Administrator and the taxpayer. Taxpayer violation of an installment agreement shall cause the total liability to accelerate and become due.
(b) Dishonored Checks. The Department shall present checks for payment twice before assessing civil liability for unpaid checks under W.S. 1-1-115. The Department shall return dishonored checks only after payment in full is received and only if requested by the taxpayer.
011-2 Wyo. Code R. § 2-9