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The Energy Policy and Conservation Act of 1975, as amended, requires DOE to periodically review its standards for small, large, and very large commercial package air conditioners and heating equipment (which includes commercial unitary air conditioners and heat pumps -- or CUACs). Under amendments to EPCA made by the American Energy Manufacturing Technical Corrections Act of 2012, Pub. L. No. 112-210 (Dec. 18, 2012), DOE must review its standards for this equipment every six years and determine whether they need amending. It also requires that, for those equipment types for which more than six years have elapsed since the most recent final rules establishing or amending a standard for that equipment, DOE must publish either a notice of determination not to amend standards or a proposal to amend the applicable standard by December 31, 2013. More than six years has elapsed since the standards for this equipment were last amended. On April 1, 2015, DOE published a notice announcing that a working group, under the Appliance Standards Federal Rulemaking Advisory Committee (ASRAC), was created to potentially develop negotiated standards (80 FR 17363). DOE is conducting this rulemaking to consider amended energy conservation standards for commercial unitary air conditioners and heat pumps as required by EPCA, as amended.