The Joint Service General Purpose Mask system is being developed to replace the M40/M42 series of masks, mask carrier and accessories for the U.S. Army, U.S. Marine Corps ground and combat vehicle operations and the MCU-2/P series of masks for the U.S. Air Force and U.S. Navy ground and ship applications. Additionally, The JSGPM will replace the M17A2 mask used by the U.S. Air Force. The JSGPM system will be designed to provide 24 hours of protection, lower the weight and bulk, and improve overall mission performance of the wearer. The mask components will be configured to reduce the overall profile of the mask and to allow for improved integration with future soldier systems. The program will target the lowest possible life cycle cost and will be supported through a joint logistic system.The Joint Service General Purpose Mask development program consists of a 3 year 6.4 Program Definition and Risk Reduction (PDRR) phase and a 3 year 6.5 Engineering and Manufacturing Development (EMD) phase. The 6.4 PDRR phase will end with a Milestone II In-Process Review (IPR) currently planned for September 2001. The EMD phase will begin in October 2001 and end with a Milestone III IPR in September 2004 with Type Classification of the item(s). Development is followed by a 10 year production phase with a First Unit Equipped (FUE) in September 2006. A detailed program structure for the JSGPM program will comprise a majority of the JSGPM life cycle carrying the program from the PDRR phase through production and Contractor Logistics Support (CLS). Decision nodes, which coincide with the milestone decisions, will be incorporated into the contract to determine if options will be exercised to proceed to the next phase.