Revisions to ANSI/MSE 2000, The Energy Management System Standard

April 2005 marked the fifth anniversary of the adoption of ANSI/MSE 2000, the Management System for Energy. As required by American National Standard Institute (ANSI) procedures, this national standard was revised and again approved by a national review board during the year. To make the standard easier to understand and implement, the format was revised to a process model based on the “plan-do-check-act” process. This change keeps ANSI/MSE 2000:2005 compatible with the current ISO 9001 (quality management) and 14001 (environmental management) standards. This review of revisions includes the reasoning behind each change or addition and the application of changes. An accompanying standard, The Guide to Implementing ANSI/MSE 2000, is also presented and discussed.