ASHRAE/IES 90.1-2010 or Equivalent Adopted in 11 States

ASHRAE/IES 90.1-2010, IECC 2012 or an equivalent commercial building energy code has been adopted in 11 states, according to EnergyCodes.gov, the energy codes website produced by the Department of Energy.

A DOE ruling required all states to certify they had an energy code in place at least as stringent as ASHRAE/IES 90.1-2010 by October of last year, or justify why they could not comply. Traditionally, 37 states have complied with these rulings.

ASHRAE/IES 90.1-2010 contains numerous provisions related to lighting controls, commissioning and documentation, which can be reviewed here (administrative requirements) and here (controls-related requirements).