Maintenance Master Data File

Under the authority of HQDA ODCS, G-4 (DA G-4), the U.S. Army Materiel Command’s Logistics Support Activity (USAMC LOGSA) maintains cataloging descriptions and technical information on equipment items in a centralized database called the Army Maintenance Master Data File (MMDF). AR 700-138, Army Logistics Readiness and Sustainability, is the official guidance for policies and procedures as they apply to readiness reporting of Army equipment; and, the identification of readiness-reportable equipment and systems. The MMDF identifies the most current readiness-reportable equipment. The B table reflects readiness reportable items on the MMDF as well as items that have not yet been added to AR 700-138 due to regulation-update time constraints.

The MMDF contains equipment identification data to automate Equipment Master File (EMF) development and maintenance within Standard Army Maintenance System - Enhanced (SAMS-E). Department of Army SAMS2 sites download the MMDF from LIW and push the EMF to their down-trace SAMS1 sites. These STAMIS have edit checks restricting readiness reporting only to those items listed as reportable in the MMDF. There are occasions where the MMDF is downloaded directly to the SAMS1E level but in order to perform correctly, the header file must be modified according to LIW website instructions. Equipment items that are locally reportable may be added to SAMS2 sites for additional visibility of theater commanders’ critical items.

The USAMMA is the Life Cycle Management Command (LCMC) for medical equipment items. The USAMMA National Maintenance Program (NMP) LCMC Project Manager identifies medical equipment and manages medical-device records listed in the MMDF. The goal of the NMP LCMC Project Manager is to work with materiel developers and ensure that equipment is properly cataloged in accordance with applicable regulations. The NMP submits equipment record changes to LOGSA/DA G-4 and participates in quarterly MMDF Review Board meetings in order to add, delete, and implement necessary changes to the MMDF.

LOGSA publishes quarterly MMDF and list of reportable item (tables B-1, 2, 3, and 4, of AR 700-138) updates to the LIW website on a quarterly basis. These are published in the months of January, April, July, and October. When using the list of reportable items for data analysis, ensure the most current edition is used to assure accurate results. MMDF data can be accessed directly through the LIW portal.

If you have questions concerning the MMDF, contact the USAMM NMP by e-mail at MMDF Managers, or phone: Commercial 301-619-3363/4373 DSN: 343-3363/4373

NOTE: If you have any questions, concerns or need assistance downloading or installing the MMDF in SAMS-E, please contact the 6th Medical Logistics Management Center at Commercial phone number 301-619-7970 or DSN - 343-7970 and email 6mlmcmedmaint@amedd.army.mil

• How to Download
• What is the MMDF