Machine-readable card catalog 
Machine Readable Cataloging 
Machine Readable Cataloguing 
MACHINE-READABLE CATALOG 
Malaysian Rating Corporation Berhad 
Maryland Area Rail Commuter 
Metabolism Assessment Review Committee 
Michigan Aerospace Research Center 
Mining and Reclamation Council 
Minority Access to Research Careers 
M/A/R/C, INC 
MAC ALCE Reaction Communications Syste… 
MACHINE-READABLE CARDS 
MAchine-Readable Cataloging 
Manpower Allocation Requirements Crite… 
Manpower Authorization Requirement Cri… 
Manpower Authorization Requirements Cr… 
Manpower Requirement Criteria 
Manpower Requirements Criteria 
Marine Animal Rescue Coalition 
Maryland Rail Commuter 
Material Accountability and Recoverabi… 
Material Accountability/Recoverability… 
Material Acquisition Review Committee 
Meat Animal Research Center 
Melbourne Advanced Research Center 
Menu Assisted Resource Control 
Michigan Aeronautical Research Center 
Micro Analytical Research Center 
Micronesian Area Research Center