Republican Mark Gordon's directive outlines that "Vaccine passport programs have the potential to politicize a decision that should not be politicized."
"They would divide our citizens at a time when unity in fighting the virus is essential, and harm those who are medically unable to receive the vaccine," Gordon noted.
Gordon also urged that getting a vaccine "is a personal choice based upon personal circumstances."
Gordon was also an early proponent of scrapping the mask mandate back in March, and allowing businesses to reopen.
Wyoming joins other states including Alabama, Minnesota, South Carolina, Arkansas, Arizona, Florida, Idaho, Montana, Texas and South Dakota that have all either passed legislation or issued orders to prevent mandatory vaccinations or COVID passport schemes.