Mark Jennings is an engineering consultant. He previously worked for ARES Corporation. Prior to ARES, Jennings owned and managed Maintenance Concepts Inc., a company that provided PdM services, outage management and engineering services to industries located throughout the Pacific Northwest. For ARES Corporation, Jennings provides PdM program training, PdM technology application, commissioning-related PdM and consensus standard interpretation related to PdM. He may be reached at or (509) 531-5614.