(a) The provisions of this chapter shall apply to:

(i) Any board of county commissioners that regulates and restricts the location and use of buildings and structures and the use, condition of use or occupancy of lands for residence pursuant to W.S. 18-5-201 and any board of county commissioners that has adopted a version of the International Residential Code; and

(ii) Any governing body of a city or town that regulates and restricts the location and use of buildings, structures and land for trade, industry, residence or other purposes, pursuant to W.S. 15-1-601 and that has adopted a version of the International Residential Code.