There is no state law that requires cities to adopt and enforce model building codes generally. Surveys of local governments relating to the enforcement of one- and two-family residential codes show that many local governments have adopted versions of a residential code, and some cities have decided, either consciously or unconsciously, not to adopt or enforce codes at the local level. Failing to adopt and enforce codes may be a disservice to the community, and could result in tragedy if preventable fires and building failures cause deaths or serious injuries.

However, state law does require that local governments adopt and enforce an energy conservation code for new building construction. Cities may adopt the energy code adopted by the state or may adopt another energy conservation code. T.C.A. § 13-19-106. The Tennessee Valley Authority (TVA) is a good resource for cities and citizens on the subject. TVA supports energy codes and is a reliable source of information. This link provides information from TVA about ways to make homes and businesses energy efficient and further information: https://www.energyright.com/