Wyo. Stat. § 15-10-102: Findings prerequisite to exercising authority.

(a) No municipality or county shall exercise the authority conferred by this chapter until its governing body adopts a resolution finding that:

(i) Unsanitary or unsafe or substandard inhabited dwelling accommodations exist in the municipality or county; or

(ii) There is a shortage of safe and sanitary dwelling accommodations in the municipality or county available to persons of low income at rentals or prices they can afford.