NEMA has published NEMA Premium® 2014 General Specification for Consultants, Industrial and Municipal: NEMA Premium® Efficiency Electric Motors. Specification outlines minimum requirements for 3-phase AC induction motors applied to municipal and industrial applications for operation on voltages 5,000 V or less, rated 2,500 hp or less, operating more than 2,000 hours per year at >75% of full-load. Latest edition includes revised and updated efficiency tables appearing in NEMA MG 1-2014.