Utility nuclear engineering organizations are among the primary end users of subchannel analysis technology. Typically there is only a limited involvement by utility staff in the actual development. of subchannel software other than the addition of user convenience features such as editing routines and automated execution of multiple cases. There is, however, a large and increasing number of applications of subchannel codes, which indicates the continuing need for software improvements to meet the needs of the end user. The subchannel code has been and will continue to be an integral part of the analysis technology maintained by utilities to ensure safe and economical design and operation of reactors. An overview of the status of the application of subchannel analysis codes at one particular utility is presented.