| M2M |
Mark-to-Market (older link archive) |
| M3 |
Manufacturers' Shipments, Inventories, and Orders Survey |
| M3UFO |
Manufacturers' Unfilled Orders Survey (older link archive) |
| MAC |
Market Access and Compliance (unable to verify 1/20) |
| MACOSH |
Maritime Advisory Committee for Occupational Safety and Health |
| MACPAC |
Medicaid and CHIP Payment and Access Commission |
| MADS |
Metadata Authority Description Schema |
| MAFCL |
Methods and Application of Food Composition Laboratory |
| MAIRS |
Monsoon Asia Integrated Regional Study (unable to verify 8/17) |
| MAP |
Market Access Program | Risk Mapping, Assessment and Planning |
| MAPP |
Modeling, Analysis, Predictions, and Projections (older link archive) |
| MAPS |
Mapping and Analysis for Public Safety (unable to verify 10/19) | Mass Attacks in Public Spaces | Mobile Applications for Public Safety (older link archive; archive2) |
| MARAD |
Maritime Administration (older link archive) |
| MARC |
Machine-Readable Cataloging |
| MARI |
Minority HIV/AIDS Research Initiative |
| MARINe |
Multi-Agency Rocky Intertidal Network (older link archive) |
| MARSSIM |
Multi-Agency Radiation Survey and Site Investigation Manual |
| MARTS |
Advance Monthly Retail Trade Survey |
| MARVEL |
Machine Assisted Realization of the Virtual Electronic Library |
| MASCD |
Mission Assurance Standards and Capabilities Division |
| MAT |
Medication-Assisted Treatment |
| MATCH |
Metadata Access Tool for Climate and Health (discontinued 6/18; archive) |
| MATES |
Multi-Agency Tissue Engineering Science (unable to verify 2/16) |
| MATRIX |
Multi-State Anti-Terrorism Information Exchange (.pdf) |
| MATS |
Mercury and Air Toxics Standards |
| MAUDE |
Manufacturer and User Facility Device Experience |
| MAVEN |
Mars Atmosphere and Volatile EvolutioN |