I was hoping to get some assistance in clarifying the types of motors that are regulated by Department of Energy for High efficiency. It relates to motors we supply integrated into our wire and cable making machines and accessories production lines and PART 431—ENERGY EFFICIENCY PROGRAM FOR CERTAIN COMMERCIAL AND INDUSTRIAL EQUIPMENT Up until May 2012, the U.S. Department of Energy’s regulations defined motors which are general purpose 3Ph ac single speed motors as the type being controlled. Development in the regulations for proposed rules looking forward from March 2011 can be found at http//www.regulations.gov/#!documentDetail;D=EERE-2010-BT-STD-0027-0017.In this document, Table 2 brings up the motors which were not currently controlled for efficiency ratings such as multi-speed, dc, electronically commutated, 1Phase, permanent magnet, inverter duty, and intermittent duty. It indicated the final date for proposing amendments to the regulation was December 19 2012. As of today, it seems further development of the U.S. code of federal regulations (paragraph 431.12) defines both general purpose and definite purpose motors. Paragraph 431.15 references test procedures (CSA, IEC,IEEE, NEMA & NFPA) for more motor types and incorporates (adds them) to the regulations. Paragraph 431.25 “Energy conservation standards and effective dates” specifies the efficiency ratings in Table 1—Nominal Full-Load Efficiencies of General Purpose Electric Motors (Subtype I), Except Fire Pump Electric Motors (Table 2) Table 3 & table 4. http//www.ecfr.gov/cgi-bin/retrieveECFR?gp=&SID=a48177fcfb7d122f513271ea54671c68&n=10y220.127.116.11.19.2&r=SUBPART&ty=HTML Other links for specific requirements for motor efficiency standards in U.S.http//www1.eere.energy.gov/buildings/appliance_standards/product.aspx/productid/50http//www1.eere.energy.gov/buildings/appliance_standards/product.aspx/productid/40 It would seems to me despite the title “Certain Commercial and Industrial Equipment” of section 431 of the federal regulation, that the purpose of the regulation is to cover all electric motors supplied alone or in a piece of equipment. Would that also be the general consensus of NEMA?