State provisions that do not meet the 1992 MEC are mandatory only in jurisdictions that have adopted a building code. Colorado is a home rule state so no statewide energy code exists. Voluntary adoption of energy codes is encouraged and efforts through OEMC and DOE grants are directed toward informing local jurisdictions of the benefits of energy efficiency standards and providing materials and training to support code implementation.
Compliance is based on the requirements of the local jurisdictions.
Energy codes are not enforced at the state level. Local enforcement agencies in jurisdictions that have adopted building codes are required to enforce the provisions of the residential energy code at the local level, but may adopt their own requirements without state approval. Inspections are required as a part of the established building inspection process. These inspections are handled by the local enforcement agencies. The Colorado legislature passed a law in 1978 requiring all jurisdictions that have adopted building codes to include energy efficiency requirements for both residential and commercial buildings.