Skip to main content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it's official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you're on a federal government site.


The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Abbreviations & Acronyms: A-D

Note: Some acronyms have more than one meaning. Multiple meanings are listed, separated by semi-colons.

A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z


A&I: Alternative and Innovative (Wastewater Treatment System)

AA: Accountable Area; Adverse Action; Advices of Allowance; Assistant Administrator; Associate Administrator; Atomic Absorption

AAEE: American Academy of Environmental Engineers

A&C: Abatement and Control

ACF: Area Cost Factors

ACBM: Asbestos-Containing Building Material

ACE: Any Credible Evidence

ADP: AHERA Designated Person; Automated Data Processing

ADR: Alternate Dispute Resolution

AEA: Atomic Energy Act

AEC: Associate Enforcement Counsels; Army Environmental Center

AEERL: Air and Energy Engineering Research Laboratory

AES: Auger Electron Spectrometry

AFB: Air Force Base

AFCEE:Air Force Center for Engineering and the Environmental

AFW-ERPIMS: Air Force Wide-Environmental Resource Program Information Management System

ALA: Delta-Aminolevulinic Acid

ALA-O: Delta-Aminolevulinic Acid Dehydrates

ALMS: Atomic Line Molecular Spectroscopy

AMBIENS: Atmospheric Mass Balance of Industrially Emitted and Natural Sulfur

ANC: Acid Neutralizing Capacity

ANN: Artificial Neural Network

AOC: Abnormal Operating Conditions

AOD: Argon-Oxygen Decarbonization

AOP: Advanced Oxidation Process

APRAC: Urban Diffusion Model for Carbon Monoxide from Motor Vehicle Traffic

AQ-7: Non-reactive Pollutant Modelling

AQCCT: Air-Quality Criteria and Control Techniques

AQCP: Air Quality Control Program

AR: Administrative Record

A&R: Air and Radiation

ARAMS: Army Risk Assessment Modeling System

ARAR: Applicable or Relevant and Appropriate Standards, Limitations, Criteria, and Requirements

ARS: Agricultural Research Service

AS: Area Source

ASAP: Adaptive Simulated Annealing Package

AST: Advanced Secondary (Wastewater) Treatment; Aboveground Storage Tank

ASTM: American Society for Testing and Materials

ASTSWMO: Association of State and Territorial Solid Waste Management Officials

AT: Advanced Treatment. Alpha Track Detection

ATOPT: Advective Transport Optimization

ATSDR: Agency for Toxic Substances and Disease Registry

ATTF: Air Toxics Task Force

back to top


BAA: Board of Assistance Appeals

BAC: Bioremediation Action Committee; Biotechnology Advisory Committee

BACM: Best Available Control Measures

BACT: Best Available Control Technology

BADT: Best Available Demonstrated Technology

BAF: Bioaccumulation Factor

BaP: Benzo(a)Pyrene

BART: Best Available Retrofit Technology

BAT: Best Available Technology

BCT: Best Control Technology

BDAT: Best Demonstrated Achievable Technology

BDCT: Best Demonstrated Control Technology

BDT: Best Demonstrated Technology

BFSD2: Benthic Flux Sampling Device

BIOPLUME: Model to Predict the Maximum Extent of Existing Plumes

BMP: Best Management Practice(s)

BOF: Basic Oxygen Furnace

BOP: Basic Oxygen Process

BOPF: Basic Oxygen Process Furnace

BP: Boiling Point

BPWTT: Best Practical Wastewater Treatment Technology

BRAC: Base Realignment Closure

BSI: British Standards Institute

BSO: Benzene Soluble Organics

BV: Bioventing

back to top


CA: Citizen Act. Competition Advocate. Cooperative Agreements. Corrective Action

CAA: Clean Air Act; Compliance Assurance Agreement

CAAA: Clean Air Act Amendments

CAER: Community Awareness and Emergency Response

CAFO: Concentrated Animal Feedlot; Consent Agreement/Final Order

CAH: Chlorindated Aliphatic Hydrocarbons

CAO: Corrective Action Order

CAP: Corrective Action Plan. Cost Allocation Procedure. Criteria Air Pollutant

CAS: Center for Automotive Safety; Chemical Abstract Service

CAU: Carbon Adsorption Unit; Command Arithmetic Unit

CB: Continuous Bubbler

CBI: Compliance Biomonitoring Inspection; Confidential Business Information

CBOD: Carbonaceous Biochemical Oxygen Demand

CCAP: Center for Clean Air Policy; Climate Change Action Plan

CCID: Confidential Chemicals Identification System

CCMS/NATO: Committee on Challenges of a Modern Society/North Atlantic Treaty Organization

CDBG: Community Development Block Grant

CDD: Chlorinated dibenzo-p-dioxin

CDF: Chlorinated dibenzofuran

CDM: Climatological Dispersion Model; Comprehensive Data Management

CEB: Chemical Element Balance

CEM: Continuous Emission Monitoring

CEMS: Continuous Emission Monitoring System

CEPP: Chemical Emergency Preparedness Plan

CEQ: Council on Environmental Quality

CERCLA: Comprehensive Environmental Response, Compensation, and Liability Act (1980)

CERCLIS: Comprehensive Environmental Response, Compensation, and Liability Information System

CFC: Chlorofluorocarbons

CFM: Chlorofluoromethanes

CFR: Code of Federal Regulations

CHEMNET: Chemical Industry Emergency Mutual Aid Network

CHRS: Compact High-Resolution Spectrophotometer

CICIS: Chemicals in Commerce Information System

CKD: Cement Kiln Dust

CLC: Capacity Limiting Constituents

CLP: Contract Laboratory Program (EPA)

CLU-IN: Hazardous Waste Clean-Up Information

CM: Corrective Measure

CMB: Chemical Mass Balance

CNG:Compressed Natural Gas

COD: Chemical Oxygen Demand

CPT: Cone Pentrometer

CSIN: Chemical Substances Information Network

CSMA: Chemical Specialties Manufacturers Association

CTG: Control Techniques Guidelines

CTSA: Cleaner Technologies Substitutes Assessment

CVS: Constant Volume Sampler

CWA: Clean Water Act (aka FWPCA)

back to top


DDESB: Department of Defense Explosives Safety Board

DDT: DichloroDiphenylTrichloroethane

DENIX: Defense Environment Network & Information Exchange

DES: Diethylstilbesterol

DfE: Design for the Environment

DH: Dissolved Hydrogen

DL-LIBS: Downhole-Laser Laser Induced Breakdown Spectroscopy

DNA: Deoxyribonucleic acid

DNAPL: Dense Nonaqueous Phase Liquid

DNT: Dinitrotoluene

DO: Dissolved Oxygen

DOE: United States Department of Energy

DOI: United States Department of Interior

DQO: Data Quality Objective

DRMS: Defense Reutilization and Marketing Service

DS: Dichotomous Sampler

DSITMS: Direct Sampling Ion Trap Mass Spectrometry

DSS: Decision Support System

DST: Decision Support Tools

DU: Depleted Uranium

DUS: Dynamic Underground Stripping

DUSD/I&D: Deputy Under Secretary of Defense for Installations and Environment

back to top

More Abbreviations and Acronyms E-I | J-Q | R-Z