In addition to the federal requirements, Wyoming state law requires that the controlled substance prescription shall be issued on security paper. Any controlled substance prescription issued by a Wyoming practitioner that is on non-security paper shall not be dispensed by a pharmacist.
Read documentation here, under “Pharmacy, Board of” (059), “Commissioner of Drugs & Substances Control” (0002), Chapter 10: Issuing and Dispensing Prescriptions for Controlled Substances.
For the federal requirements, you can refer to the official documentation here and here.