| Acronym | Meaning |
![](file.png) | NAIMA | North American Insulation Manufacturers Association |
![](file.png) | NAIP | Non-Apatite Inorganic Phosphorus |
![](file.png) | NAIP | Neuronal Apoptosis Inhibitory Protein |
![](file.png) | NAL | No Action Level |
![](file.png) | NAMA | National Air Monitoring Audits |
![](file.png) | NAMAS | National Measurement Accreditation Service (UK) |
![](file.png) | NAME | Nuclear Accident Modeling Exercise [a Model] |
![](file.png) | NAMF | Non-asbestos Mineral Fibers |
![](file.png) | NAMICS | North American Chapter Of The International Chemometrics Society |
![](file.png) | NAMS | National Air Monitoring Station |
![](file.png) | NAMS | Neutron Activation Mass Spectrometry |
![](file.png) | NAMT | National Advanced Manufacturing Testbed |
![](file.png) | NAO | Natural Atomic Orbital |
![](file.png) | NAPAP | National Acid Precipitation Assessment Program |
![](file.png) | NAPBN | National Air Pollution Background Network |
![](file.png) | NAPCA | National Air Pollution Control Administration |
![](file.png) | NAPIAP | National Agricultural Pesticide Impact Assessment Program |
![](file.png) | NAPIM | National Association Of Printing Ink Manufacturers (US) |
![](file.png) | NAPIS | National Agricultural Pest Information System |
![](file.png) | NAPL | Nonaqueous Phase Liquid |
![](file.png) | NAPPA | Nucleic Acid Programmable Protein Array |
![](file.png) | NAPRI | North American Pollutant Release Inventory |
![](file.png) | NARA | United States National Archives And Records Administration |
![](file.png) | NARE | North Atlantic Regional Experiment |
![](file.png) | NAREL | National Air And Radiation Environmental Laboratory |
![](file.png) | NARL | National Air And Radiation Laboratory |
![](file.png) | NARS | National Asbestos Registry System |
![](file.png) | NARSTO | North American Research Strategy For Tropospheric Ozone |
![](file.png) | NARSTO-NE-OP | North American Research Strategy For Tropospheric Ozone-Northeast Oxidant And Particle Study |
![](file.png) | NAS | National Academy Of Science |
![](file.png) | NAS | Naval Air Station |
![](file.png) | NASA | National Aeronautics And Space Administration |
![](file.png) | NASBA | Nucleic Acid Sequence-based Amplification |
![](file.png) | NASC | North American Shale Composite |
![](file.png) | NASD | National Ag Safety Database |
![](file.png) | NASDA | National Space Development Agency Of Japan |
![](file.png) | NASICON | Na Super-ionic Conductor |
![](file.png) | NASN | National Air Sampling Network |
![](file.png) | NASO | Nasmyth Adaptive Optics System |
![](file.png) | NASP | National Aerospace Plane |
![](file.png) | NASQAN | National Stream Quality Accounting Network |
![](file.png) | NASQUAN | National Stream Water Quality Accounting Network |
![](file.png) | NAT | Nitric Acid Trihydrate (polar Stratosphere Cloud Aerosol) |
![](file.png) | NATA | National Air Toxics Assessment |
![](file.png) | NATAS | North American Thermal Analysis Society |
![](file.png) | NATICH | National Air Toxics Information Clearinghouse |
![](file.png) | NATO | North Atlantic Treaty Organization |
![](file.png) | NAVORDSTA | Naval Ordnance Station (US) |
![](file.png) | NAWDEX | National Water Data Exchange |
![](file.png) | NAWQA | National Water Quality Assessment (US Geological Survey) |