To provide the user with a recommended procedure that is safe and easily understood, for the selection, application, and determination of the remaining life in molded case circuit breakers. Project is necessary because there is widespread misunderstanding on this subject. Because of these misunderstandings, users are unintentionally installing and applying molded case circuit breakers in situations that are potentially dangerous. The proposed recommended practice will provide suggested recommended practices to safely apply and test molded case circuit breakers. New IEEE Standard - Superseded. A recommended procedure for the selection, application, and determination of the remaining life in molder case circuit breaker is provided.