Many features and components of rotating electric machines are highly standardized. Once in operation, however, a motor is subject to servicing practices that have been much less fully documented. That picture has recently changed with issuance of the first IEEE document combining maintenance recommendations with diagnosis of trouble. Published in April 2007, IEEE 1415 is titled Guide for Induction Machinery Maintenance Testing and Failure Analysis. Whenever an IEEE Guide, Recommended Practice, or Standard invokes a specific test procedure, good practice dictates either that such procedure be published in another document dealing with the same apparatus, and originating with an established standards-writing agency, or that it be fully defined in the publication calling for it. Regrettably, that practice was not followed throughout IEEE 1415. Nevertheless, with the addition of the "root cause" approach of this newest standard, the documents reviewed here can be used to establish a sound maintenance and repair program for any motor or generator application.