Weil's Code of Wyoming Rules (Wyo. Code R. (LexisNexis)
Per Wyoming State law Library, only available online after 2016.
State registers and regulation tracking are offered by Lexis, found on its Administrative Codes & Regulations.
In Bloomberg Law, proposed, final, emergency, temporary, and interim rules, plus regulatory notices can be found under Rulemaking within the State Laws & Regulation collection.