| ABSA |
American Biological Safety Association |
| ACGIH |
American Conference of Governmental Industrial Hygienists |
| AEGL |
Acute Exposure Guideline Levels |
| AIHA |
American Industrial Hygiene Association |
| ANL |
Argonne National Laboratory |
| ARL/SORD |
Air Resources Laboratory/Special Operations and Research Division |
| ARAC |
Atmospheric Release Advisory Capability |
| ATSDR |
Agency for Toxic Substances and Disease Registry |
| BELLE |
Biological Effects of Low Level Exposures |
| BNL |
Brookhaven National Laboratory |
| BSWG |
Biosafety Working Group |
| CAM |
Consequence Assessment Model |
| CAMWG |
Consequence Assessment Modeling Working Group |
| CARAT |
Chemical Accident Risk Assessment Thesaurus |
| CBR |
Chemical, Biological, and Radiological |
| CBRNE |
Chemical, Biological, Radiological, and Nuclear or high-yield Explosive |
| CEMS |
Comprehensive Emergency Management System |
| CEPPO |
Chemical Emergency Preparedness and Prevention Office (EPA) |
| CEWG |
Chemical Exposure Working Group |
| CMM |
Chemical Mixture Methodology |
| CMWG |
Chemical Mixtures Working Group |
| CTR |
Central Toolbox Registry |
| DMCC |
DOE Meteorological Coordinating Council |
| DOE |
US Department of Energy |
| EFCOG |
Energy Facilities Contractors Group |
| EMI SIG |
Emergency Management Issues Special Interest Group |
| EPA |
Environmental Protection Agency |
| ERPGs |
Emergency Response Planning Guidelines |
| GUI |
Graphical User Interface |
| HCN |
Health Code Number |
| HI |
Hazard Index |
| IDLH |
Immediately Dangerous to Life or Health |
| INEEL |
Idaho National Environmental and Engineering Laboratory |
| LBNL |
Lawrence Berkeley National Laboratory |
| LLNL |
Lawrence Livermore National Laboratory |
| LANL |
Los Alamos National Laboratory |
| LCL0 |
Lowest Concentration causing lethality |
| LD50 |
Lethal Dose 50% |
| LDL0 |
Lowest Dose causing lethality |
| NARAC |
National Atmospheric Release Advisory Center |
| NIOSH |
National Institute for Occupational Safety and Health |
| NNSA |
National Nuclear Security Administration |
| NOAA |
National Oceanic and Atmospheric Administration |
| MSDS |
Material Safety Data Sheets |
| NA-41 |
U.S. DOE Office of Emergency Management and Policy |
| OFCM |
Office of the Federal Coordiantor for Meteorological Services and Supporting Research |
| ORAU |
Oak Ridge Associated Universities |
| ORNL |
Oak Ridge National Laboratory |
| ORISE |
Oak Ridge Institute for Science and Education |
| OSHA |
Occupational Safety and Health Administration |
| PAC |
Protective Action Criteria |
| PAG |
Protective Action Guidance |
| PEL |
Permissible Exposure Limit |
| PNNL |
Pacific Northwest National Laboratory |
| SASG |
Software Assessment Safety Group |
| SCAPA |
Subcommittee on Consequence Assessment and Protective Actions |
| SNL |
Sandia National Laboratory |
| SRS |
Savannah River Site |
| STEL |
Short-Term Exposure Limit |
| STWG |
Source Term Working Group |
| TEELs |
Temporary Emergency Exposure Limits |
| TCL0 |
Lowest Dose causing a toxic effect |
| TDL0 |
Lowest Dose causing a toxic effect |
| TLV |
Threshold Limit Value |
| TRADE |
Training Resource and Data Exchange |
| WMD |
Weapons of Mass Destruction |
