AA - Adverse Action
AA - Advices of Allowance
AA - Assistant (or Associate) Administrator
AA - Attainment Area
AA - Atomic Absorption
AAA - American Arbitration Association
AAA - American Automobile Association
AAAS - American Assoc. for the Advancement of Science
AAC - Acceptable Ambient Concentration
AAEE - American Academy of Environmental Engineers
AAEM - American Academy of Environmental Medicine
AAES - American Association of Engineering Societies
AAFES - Army and Air Force Exchange Service
AAL - Applied Action Level
AAL - Acceptable Ambient Limit
AANWR - Alaskan Arctic National Wildlife Refuge
AAOHN - American Association of Occupational Health Nurses
AAP - Affirmative Action Plan (Program)
AAP - Army Ammunition Plant
AAP - Asbestos Action Program
AAPCO - American Association of Pesticide Control Officials
AAR/BOE - Association of American Railroads/Bureau of Explosives
AARC - Alliance for Acid Rain Control
AARP - American Association of Retired Perons
AAQA - Ambient Air Quality Standard
AAS - Atomic Absorption Spectroscopy
AB - Afterburner
AB - Assembly Bill
ABA - American Bar Association
ABAG - Association of Bay Area Governments
ABEL - EPA's computer model for analyzing a violator's ability to pay a civil penalty
ABES - Alliance for Balanced Environmental Studies (Solutions)
ABMA - American Boiler Manufacturers Association
ABS - Acrylonitrile-Butadiene-Styrene
ABTRES - Abatement and Residual Forecasting Model
AC - Actual Commitment
AC - Advisory Circular
AC - Alternating Current
A/C - Air to Cloth Ratio
A&C - Abatement and Control
ACA - Absolute Calibration Audit
ACA - American Conservation Association
ACBM - Asbestos-Containing Building Material (see ACM)
ACC - American Chemistry Council
ACDA - Arms Control & Disarmament Agency
ACE - Alliance for Clean Energy
ACE - Any Credible Evidence
ACEC - American Consulting Engineers Council
ACEEE - American Council for an Energy Efficient Economy
acfm - Actual cubic feet per minute
ACGIH - American Conference of Government Industrial Hygienists
ACI - Activated Carbon Injection
ACI - American Concrete Institute
ACI - Association for Conservation Information
ACL - Alternate Concentration Limit
ACL - Analytical Chemistry Laboratory
ACM - Asbestos-Containing Material
ACO - Administrative Consent Order
ACO - Administrative Contracting Officier
ACOE - Army Corps of Engineers
ACP - Agriculture Control Program (Water Quality Management)
ACP - Air Carcinogen Policy
ACQR - Air Quality Control Region
ACQUIRE - Aquatic Information Retrieval
ACQR - Air Quality Control Region
ACR - Agency Confirmation Agreement
ACRN - Accounting Classification Reference Number
ACS - American Chemical Society
ACS - Acid Scrubber
ACSH - American Council on Science and Health
ACT - Action
ACTS - Asbestos Contractor Tracking System
ACWA - American Clean Water Association
ACWM - Asbestos-Containing Waste Material
ADA - Anti-Deficiency Act
ADABA - Acceptable Database
ADAPT - Adapt II Structural Activities
ADARD - Acid Deposition and Atmospheric Research Division
ADAS - Acid Deposition Assessment Staff
ADB - Applications Data Base
ADBA - Adabas Administrator
ADCO - Alternate Document Control Officier
ADCR - Automated Document Control Register
ADCRMG - Automated Document Control Register Management Group
ADD - Average Daily Dose
ADGAS - Venting of Compressed Gases into an Absorbing or Reacting Media
ADI - Acceptable Daily Intake
ADL - Acceptable Daily Intake
ADMIN - ERL-Athens Administrative System
ADP - AHERA Designated Person
ADP - Applications Database
ADP - Automated Data Processing
ADPCE - Arkansas Department of Pollution Control and Ecology
ADPCE - TS ADP Capital Equipment Inventory System
ADPE - Automated Data Processing Equipment
ADPS - Acid Deposition Planning Staff
ADQ - Audits of Data Quality
ADR - Alternative Dispute Resolution
ADSS - Air Data Screening System
ADT - Average Daily Traffic
ADTRACS - Assistance Disputes
A/E - Architecture and Engineering Services
AEA - Atomic Energy Act (1954)
AEC - Associate Enforcement Counsels
AEC - Army Environmental Center
AED - Air Enforcement Division
AED - Analysis and Evaluation Division
AEE - Association of Energy Engineers
AEE - Alliance for Environmental Education
AEERL - Air and Energy Engineering Research Laboratory
AEFA - Average Emission Factor Approach
AEGL - Acute Exposure Guideline Levels
AEHA - U.S. Army Environmental Hygiene Agency
AEL - Airborne Exposure Limit
AEM - Acoustic Emission Monitoring
AERE - Association of Environmental and Research Economists
AEROS - Aerometric and Emissions Reporting System
AES - Air and Energy Staff
AES - American Electroplating Society
AES - Analysis and Evaluation Staff
AES - Auger Electron Spectrometry
AESA - Association of Environmental Scientists and Administrators
AF - Absorption Fraction
AFA - American Forestry Association
AFARS - Army Federal Acquisition Regulation Supplemental
AFB - Air Force Base
AFBF - American Farm Bureau Federation
AFCA - Area Fuel Consumption Allocation
AFCEE - Air Force Center for Environmental Excellence
AFDO - Award Fee Determination Official
AFGE - American Federation of Government Employees
AFI - American Forest Institute
AFRCE - Air Force Regional Civil Engineers
AFS - AIRS Facility Subsystem
AFTA - American Forest & Timber Association
AFUG - AIRS Facility Users Group
AG - Attorney General
AGA - American Gas Association
AGC - Associate General Counsel
AGCA - Associated General Contractors of America
AGDS - Automated Grants Documentation System
AGST - Above-Ground Storage Tanks
AH - Allowance Holder
AH - Aryl hydrocarbon
AHERA - Asbestos Hazard Emergency Response Act (TSCA, 1986)
AHH - Aryl hydrocarbon hydroxylase
AHM - Acutely Hazardous Material
AHM - Allowance Monthly Holder
AHQ - Acute Hazard Quotient
AHU - Air Handling Unit
AHW - Acutely Hazardous Waste
AI - Active Ingredient (generally in regards to pesticides)
AI - Artificial Intelligence
A&I - Alternative and Innovative (Wastewater Treatment System)
AIA - American Institute of Architects
AIA - Asbestos Information Association
AIAA - American Institute of Aeronautics and Astronautics
AIADA - American International Automobile Dealers Association
AIC - Acceptable Intake - Chronic
AIC - Active to Inert Conversion
AIChE - American Institute of Chemical Engineers
AlCPA - American Institute of Certified Public Accountants
AICR - Alternative Internal Control Review
AICUZ - Air Installation Compatible Use Zones
AID - Agency for International Development
AIEC - Acute Inhalation Exposure Criteria
AIF - Atomic Industrial Health Forum
AIG - Assistant Inspector General
AIHA - American Industrial Hygiene Association
AIHC - American Industrial Health Council
AIME - American Institute of Metallurgical, Mining and Petroleum Engineers
AIP - Auto-ignition Point
AIRDOS - Atmospheric Dispersion of Radionuclides
AIRMON - Atmospheric Integrated Research Monitoring Network
AIR RISC - Air Risk Information Support Center
AIRS - Accident and Illness Reporting System
AIRS - Aerometric Information Retrieval System
AIRS - Air Quality Subsystem
AIS - Acceptable Intake for Subchronic Exposures
AIS - Asbestos Information System
AISCM - Advanced Information System for Career Management
AISI - American Iron and Steel Institute
AL - Acceptable Level
AL - Action Level
AL - Administrative Leave
AL - Annual Leave
ALA - American League of Anglers
ALA - American Lung Association
ALA - Delta-Aminolevulinic Acid
ALA-O - Delta-Aminolevulinic Acid Dehydrates
ALAPCO - Association of Local Air Pollution Control Officers (Officials)
ALAPO - Association of Local Air Pollution Control Officers (Officials)
ALARA - As Low as Reasonably Achievable
ALC - Application Limiting Constituent
ALD-O - Delta-Aminolevulinic Acid Dehydrates
ALEC - American Legislative Exchange Council
ALJ - Administrative Law Judge
ALMS - Atomic Line Molecular Spectroscopy
ALPS - EPA Athens, GA Lab Planning System
ALR - Action Leakage Rate
ALS - American Littoral Society
ALT-SEA - Assembly Line Test and Selective Enforcement Audit Data
AMA - American Medical Association
AMBIENS - Atmospheric Mass Balance of Industrially Emitted and Natural Sulfur
AMC - American Mining Congress
AMC - Army Material Command
AMD - Air management Division
AMIS - Air Management Information System
AMLGM - Amalgamation of Liquid, Elemental Mercury Contaminated with Radioactive Materials Utilizing Inorganic Reagents
AMOS - Air Management Oversight System
AMPS - Automatic Mapping and Planning System
AMS - Administrative Management Staff
AMS - American Meteorological Society
AMS - Army Map Service
AMSA - Association of Metropolitan Sewer Agencies
AMSD - Administrative and Management Services Division
AMSO - Acquisition Management Staff Officier
AMTIC - Ambient Monitoring Technical Information Center
ANC - Acid Neutralizing Capacity
ANDA - Abbreviated New Drug Application
ANEC - American Nuclear Energy Council
ANPR - Advance Notice of Proposed Rulemaking
ANRHRD - Air, Noise and Radiation Health Research Division
ANPRM - Advance Notice of Proposed Rulemaking
ANSI - American National Standards Institute
ANSS - American Nature Study Society
ANWR - Arctic National Wildlife Refuge
AO - Administrative Officier
AO - Administrative Order
AO - Area Office
AO - Awards and Obligations
AOAC - Association of Official Analytical Chemists
AOC - Abnormal Operating Conditions
AOC - Administrative Order on Consent
AOC - Area of Concern
AOC - Area of Contamination
AOD - Argon-Oxygen Decarbonization
AOML - Atlantic Oceanographic and Meteorological Laboratory
AOO - Accounting Operations Office
AOO - American Oceanic Organization
AOS - Audit Operations Staff
AP - Accounting Point
APA - Acid Precipitation Act (1980)
APA - Administrative Procedures Act
APA - American Planning Association
APC - Air Pollution Control
APCA - Air Pollution Control Association
APCD - Air Pollution Control Device
APCD - Air Pollution Control District
APCO - Air Pollution Control Officer
APCS - Air Pollution Control System
APDS - Automated Procurement Documentation System
APER - Air Pollution Emissions Report
APF - Appropriated Fund
APGR - Ann Arbor AP-42 Program
APHA - American Public Health Association
API - American Paper Institute
API - American Petroleum Institute
APL - Aqueous Phase Liquid
APME - Association of Plastics Manufacturers in Europe
APO - Army Post Office
APPA - American Public Power Association
APRAC - Urban Diffusion Model for Carbon Monoxide from Motor Vehicle Traffic
APS - ADP Planning System
APS - Automated Personnel System
APT - Associated Pharmacists and Toxicologists
APTI - Air Pollution Training Institute
APTMD - Air, Pesticides, and Toxics Management Division
APTS - Advanced Public Transportation Systems
APWA - American Public Works Association
AQ-7 - Non-reactive Pollutant Modeling
AQCCT - Air Quality Criteria and Control Techniques
AQCP - Air Quality Control Program
AQCR - Air Quality Control Region
AQD - Air Quality Digest
AQDHS - Air Quality Data Handling System
AQDM - Air Quality Display Model
AQMA - Air Quality Maintenance Area
AQMD - Air Quality Management District
AQMP - Air Quality Management Plan
AQMP - Air Quality Maintenance Plan
AQM1 - Region 1 Air quality Models
AQM2 - Region 2 Puerto Rico EQB Air Quality Model
AQSM - Air Quality Simulation Model
AQSY - Ann Arbor Air quality System
AQTAD - Air Quality Technical Assistance Demonstration
AQUIFR - Artifical Aquifer Data Collection System
Ar - Argon
AR - Administrative Record
AR - Army Regulation
A&R - Air and Radiation
ARA - Assistant Regional Administrator
ARA - Associate Regional Administrator
ARAC - Acid Rain Advisory Committee
ARAR - Applicable, Relevant and Appropriate Requirements
ARB - Air Resources Board
ARC - Agency Ranking Committee
ARCC - American Rivers Conservation Council
ARCS - Alternative Remedial Contract Strategy
ARD - Air & Radiation Division
ARD - Aquatic Resource Division
ARE - Acute Respiratory Exposures
AREL - Acute Reference Exposure Level
ARG - American Resources Group
ARIP - Accidental Release Information Program
ARL - Air Resources Laboratory
ARM - Air Resources Management
ARNEWS - Acid Rain National Early Warning Systems
ARO - Alternate Regulatory Option
ARPO - Acid Rain Policy Office
ARPS - Atmospheric Research Program Staff
ARRO - Acid Rain Research Program
ARRP - Acid Rain Research Program
ARRPA - Air Resources Regional Pollution Assessment
ARS - Agricultural Research Service
ARZ - Auto-Restricted Zone
AS - Area Source
AS - Absorber
ASA - American Society of Agronomy
ASAE - American Society of Agriculture
ASAP - As Soon As Possible
ASB - American Standards Branch
ASC - Area Source Category
ASCE - American Society of Civil Engineers
ASCII - American Standard Code for Information Interchange
ASCP - American Society of Consulting Planners
ASCS - Agricultural Stabilization and Conservation Services
ASD - Administrative Services Division
ASD - Analysis and Support Division
ASDWA - Association of State Drinking Water Administrators
ASG - Area Support Group
ASHAA - Asbestos in Schools Hazard Abatement Act (1984)
ASHAAIS - Asbestos in Schools Hazard Abatement Automated Information System
ASHRAE - American Soc. for Heating, Refrigeration and Air Conditioning Engineers
ASIWPCA - Association of State and Interstate Water Pollution Control Administrators
ASMDHS - Airshed Model Data Handling System
ASME - American Society of Mechanical Engineers
ASN - American Society of Naturalists
ASPA - American Society of Public Administration
ASPIS - Abandoned Site Program Information System
ASRL - Atmospheric Sciences Research Laboratory
ASSE - American Society of Sanitary Engineers
AST - Aboveground Storage Tank
AST - Advanced Secondary (Wastewater) Treatment
ASTHO - Association of State and Territorial Health Officers
ASTM - American Society for Testing and Materials
ASTS - Asbestos in Schools Tracking System
ASTSWMO - Association of State and Territorial Solid Waste Management Officials
ASUS - Admistrative Support/Utilization
AT - Advanced Treatment
AT - Averaging Time
AT - Ash Trap
ATA - American Trucking Association
ATC - Area Training Center
ATCS - Audit Tracking and Control System
ATD - Air and Toxics Division
ATERIS - Air Toxics Exposure and Risk Information System
atm - Atmosphere
ATM - Asynchronous Transfer Mode
ATMI - American Textile Manufacturing Institute
ATMS - Advanced Traffic Management Systems
ATP - Antitampering Program
ATR - Agency Technical Representative
ATRMRD - Air Toxics and Radiation Monitoring Research Division
ATS - Action Tracking System
ATS - Administrator's Tracking System
ATS - Allowance Tracking System
ATS - Assignment Tracking System
ATSDR - Agency for Toxic Substances and Disease Registry
ATTF - Air Toxics Task Force
ATTS - Agency Technology Transfer Staff
AUSA - Assistant U.S. Attorney
AUSM - Advanced Utility Simulation Model
A/V - Audiovisual
AVCS - Automatic Vehicle Control Systems
AVD - Audio-Visual Division
Ave - Average
AVL - Automatic Vehicle Location
AWFCO - Automatic waste feed cutoff
AWFCS - Automatic waste feed cutoff system
AWI - Animal Welfare Institute
AWISE - Association of Women in Science and Engineering
AW&MA - Air and Waste Management Association (formerly, Air Pollution Control Association)
AWMD - Air and Waste Management Division
AWOL - Absent Without Leave
AWPI - American Wood Preservers Institute
A/WPR - Air/Water Pollution Report
AWQC - Ambient Water-Quality Criteria
AWRA - American Water Resources Association
AWT - Advanced Wastewater Treatment
AWWA - American Water Works Association
AWWARF - American Water Works Association Research Foundation
AWWUC - American Water Works Utility Council
AX - Administrator's Office
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