An American National Standard. The American Society of Mechanical Engineers (ASME). Revision of ASME QME-1-1997. Date of Issuance: May 31, 2001. 127p. This Standard describes the requirements and guidelines for qualifying active mechanical equipment used in nuclear power plants. The requirements and guidelines presented include the principles, procedures, and methods of qualification. Requirements are specifically denoted throughout this Standard and are generally recognized by the accompanying word shall, while guidelines are accompanied by the word should.