A mandatory energy code is not enforced at the state level. If a local energy code is adopted, it is enforced at the local level. Builders or sellers of new residential buildings (single-family or multifamily residential of four units or less) are required to provide a disclosure form with information regarding the energy efficiency of the building.
Currently all state facilities are contractually required to be built to ASHRAE 90.1-1999.
For information on the statewide Energy Management Plan