Energy Efficiency Resource Standard:

The Arizona Corporation Commission (ACC) voted in September 2025 to repeal its mandatory Energy Efficiency (EE) and Demand-Side Management (DSM) rules, which were adopted in 2010. The repeal does not eliminate all energy efficiency programs; existing and future programs will continue to be evaluated and approved on a case-by-case basis during rate cases.

Building Codes:

Arizona is a home rule state. The majority of construction occurs in jurisdictions that have adopted 2012, 2015 or 2018 IECC. All state-funded buildings constructed after February 11, 2005, must achieve LEED Silver certification and meet the energy standards of ASHRAE 90.1-2004 (Executive Order 2005-05).

Appliance Standards:

Arizona enacted energy efficiency appliance standards covering twelve categories in 2008-10. All were preempted by federal standards. Three new appliance standards were enacted in 2012 covering pool pumps, pool pump motors, and electric spas.