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Environmental Health & Safety Acronyms
We all know that government officials and technoids love to use acronyms for everything! IAC (in any case), here is a list of the most common EHS acronyms. If we missed one or you have a list to suggest, contact us by the feedback form!
IF YOU DON'T FIND IT IN THE LIST BELOW, TRY THIS MASSIVE EPA GLOSSARY OF TERMS AND PHRASES. JUST CLICK ON THE LETTER BELOW THAT THE TERM BEGINS WITH:
And if you're looking for our massive environmental & safety guidance web pages, click here!
| Acronym | Description |
| AA | Attainment Area |
| ACL | Alternative Concentration Limit |
| ACM | Asbestos-Containing Material |
| ANSI | American National Standards Institute |
| AOC | Area of Contamination |
| API | American Petroleum Institute |
| AQCR | Air Quality Control Region |
| ARAR | Applicable Relevant and Appropriate Requirements (Cleanup Standards) |
| ASHRAE | American Society of Heating, Refrigeration and Air Conditioning Engineers |
| ASTM | American Society for Testing and Materials |
| ATSDR | Agency for Toxic Substances and Disease Registry |
| BACM | Best Available Control Measure |
| BACT | Best Available Control Technology |
| BAT | Best Available Technology |
| BATEA | Best Available Technology Economically Achievable |
| BCT | Best Conventional Technology |
| BDAT | Best Demonstrational Achievable Technology (also "Available") |
| BDT | Best Demonstrational Technology |
| BEJ | Best Engineering Judgment |
| BIF | Boiler and Industrial Furnace |
| BMP | Best Management Practice |
| BOD | Biological Oxygen Demand |
| BPJ | Best Professional Judgment |
| BPT | Best Practical Control Technology |
| BRS | Biennial Reporting System |
| BTU | British Thermal Units |
| C&D | Construction and Demolition |
| CAA | Clean Air Act |
| CAAA | Clean Air Act Amendments
|
| CBI | Confidential Business Information |
| CAIR | Comprehensive Assessment Information Rule |
| CAMU | Corrective Action Management Unit |
| CAS | Chemical Abstract Service |
| CCP | Commercial Chemical Product |
| CDC | Centers for Disease Control |
| CDD | Chlorodibenzodioxin |
| CDF | Chlorodibenzofuran |
| CEM | Continuous Emission Monitoring |
| CEQ | Council on Environmental Quality |
| CERCLA | Comprehensive Environmental Response Compensation Liability Act of 1980 (amended in 1984 and later) |
| CESQG | Conditionally Exempt Small Quantity Generator of hazardous wastes |
| CFC | Chlorofluorocarbon - an ozone-depleting refrigerant |
| CFR | Code of Federal Regulations |
| CHEMTREC | Chemical Transportation Emergency Center |
| CHIPS | Chemical Hazards Information Profiles (EPA |
| COD | Chemical Oxygen Demand |
| CPSC | Consumer Product Safety Commission (16 CFR) |
| CTG | Control Techniques Guidelines |
| CWA | Clean Water Act |
| DCO | Delayed Compliance Order |
| DDT | Dichlorodiphenyltrichloroethane - a toxic pesticide |
| DMR | Discharge Monitoring Reports |
| DO | Dissolved Oxygen |
| DOD | Department of Defense |
| DOE | Department of Energy |
| DOJ | Department of Justice |
| DOT | Department of Transportation |
| DRE | Destruction and Removal Efficiency |
| EIS | Environmental Impact Statement |
| EMS | Environmental Management System (also see ISO14000) |
| EP | Extraction Procedure |
| EPA | Environmental Protection Agency |
| EPR | Extended Product Responsibility |
| ESA | Environmental Site Assessment |
| EPCRA | Emergency Planning and Community Right-to-Know Act |
| ESP | Electrostatic Precipitor |
| FDA | Food and Drug Administration(21 CFR) |
| EUP | Exceptional Use Permits |
| FFCA | Federal Facility Compliance Act |
| FIFRA | Federal Insecticide, Fungicide and Rodenticide Act |
| First Third | August 17, 1988, Federal Register (53 FR 31138) - the first of the hazardous waste land disposal restrictions |
| FR | Federal Register |
| GLP | Good Laboratory Practices |
| GNP | Good Manufacturing Procedures |
| GPO | Government Printing Office |
| GRAS | Generally Recognized as Safe |
| GLPS | Good Laboratory Practice Standards |
| HAP | Hazardous Air Pollutant |
| HazWoper | 29 CFR 1910.120 - the OSHA / EPA requirement to have all employees trained if they will be handling, managing or shipping hazardous wastes. |
| HRS | Hazard Ranking System |
| HCFC | Hydrochlorofluorocarbon |
| HHW | Household Hazardous Waste |
| HM | Hazardous Material |
| HW | Hazardous Waste |
| HSWA | Hazardous and Solid Waste Amendments of 1984 |
| HWM | Hazardous Waste Management |
| ID | (as in ID number) - Hazardous Waste Identification Number assigned to RCRA generators, transporters, and TSDFs |
| Implementing Agency | refers to the State or Regional office implementing RCRA |
| INUR | Inventory Update Rule |
| ISO | International Organization for Standardization |
| ISO14000 | The ISO standard for environmental management systems |
| ITC | Interagency Testing Committee |
| LAER | Lowest Achievable Emission Rate |
| LCA | Life Cycle Analysis/ Assessment |
| LDR | Land Disposal Restrictions (40 CFR Part 268) |
| LEPC | Local Emergency Planning Committee |
| Limit | |
| LOEL | Lowest Observed Effect Level |
| LQG | Large Quantity Generator of hazardous wastes - this term has a specific definition under RCRA! |
| LUST | Leaking Underground Storage Tanks |
| MACT | Maximum Achievable Control Technology |
| MARPOL | International Convention on the Prevention of Pollution from Ships |
| MCL | Maximum Concentration Limit or Level |
| LQHUW | Large Quantity Handlers of Universal Waste (haz wastes) |
| LSF | Liquid Scintillation Fluid (rad waste) |
| MRQ | Monthly Hotline Report Q&A, The Hotline prepares a monthly report that contains questions and answers on common or difficult RCRA topics. EPA publishes this report. The questions and answers can be usually used as EPA guidance. Beware: the hotline is run by an EPA contractor and their answers are often erratic and not legally binding. |
| MSDS | Material Safety Data Sheet (under OSHA) |
| MSW | Municipal Solid Waste (trash, nonhazwaste, etc.) |
| NAA | Non-Attainment Area |
| NAAQS | National Ambient Air Quality Standards |
| NCP | National Contingency Plan |
| NEPA | National Environmental Policy Act |
| NESHAP | National Emissions Standard for Hazardous Air Pollutants |
| NIOSH | National Institute of Occupational Safety and Health |
| NIPDWR | National Interim Primary Drinking Water Regulation |
| NPDES | National Pollutantion Discharge Elimination System |
| NPL | National Priorities List - the list of Superfund sites |
| NRC | National Response Center |
| NFPA | National Fire Protection Act |
| NIH | National Institute for Health |
| NORM | Naturally Occurring Radioactive Material |
| NRC | Several possibilities: Nuclear Regulatory Commission, National Response Center, or National Research Council |
| NSDWR | National Secondary Drinking Water Regulation |
| NSPS | New Source Performance Standards |
| NSR | New Source Review |
| NTIS | National Technical Information Service (usually charges you for the same information that we provide free...) |
| ODS | Ozone Depleting Substances (air emissions) |
| OPM | Operation and Maintenance |
| ORD | Office of Research and Development |
| OSHA | Occupational Safety and Health Administration (29 CFR) |
| OSW | Office of Solid Waste |
| OSWER | Office of Solid Waste and Emergency Response |
| P2 | Pollution Prevention |
| PAIR | Preliminary Assessment Information Rule |
| PBT | Persistent, Bioaccumulative, Toxic |
| PCB | Polychlorinated biphenyl - A toxic cooling oil used in the past in transformers and capacitors |
| PCP | Pentachlorophenol |
| PEL | Permissible Exposure Limit |
| PM-10 | Particulate Matter< 10 Micrometers |
| PNA | Polynuclear Aromatic Compounds |
| PNIN | Premanufacture Notification |
| POTW | Publicly Owned Treatment Works |
| PPB | Parts Per Billion |
| PPM | Parts Per Million |
| PRP | Potentially Responsible Parties |
| PSD | Prevention of Significant Deterioration |
| PPE | Personal Protective Equipment (such as gloves, repirators, etc.) |
| QA/QC | Quality Assurance/Quality Control |
| R&D | Research and Development |
| RACM | Reasonably Available Control Measure |
| RACT | Reasonably Available Control Technique |
| RCRA | Resource Conservation and Recovery Act of 1976 - resulted in hazardous waste regulations - 40 CFR Parts 260 to 280 |
| RGD | Radiation-Generating Devices |
| RI/FS | Remedial Investigation/ Feasibility Study |
| RPCC | Release Prevention, Control and Countermeasure |
| RQ | Reportable Quantity |
| RMP | Risk Management Plan |
| RSO | Radiation Safety Officer |
| RUST | RCRA Underground Storage Tanks |
| SARA | Superfund Amendment Reauthorization Act |
| SBAP | Small Business Assistance Program |
| SBO | Small Business Ombudsman |
| SDWA | Safe Drinking Water Act of 1974 |
| Second Third | June 23, 1989, Federal Register (54 FR 26594) - hazardous waste land disposal restrictions |
| SERC | State Emergency Response Commission |
| SIC | Standard Industrial Classification |
| SIP | State Implementation Plan |
| SMCL | Secondary Maximum Contamination Level |
| SNM | Special Nuclear Material |
| SOC | Schedule of Compliance |
| SPCC | Spill Prevention Control and Countermeasures |
| SPDES | State Pollutant Discharge Elimination |
| SQG | Small Quantity Generator of hazardous wastes (has a specific definition!) |
| SQHUW | Small Quantity Handlers of Universal Waste (haz waste) |
| SW-846 | Test Methods for Evaluating Solid Waste, Physical/Chemical Methods |
| SWMU | Solid Waste Management Unit |
| SSLA | Small Sealed Lead Acid (battery) |
| TAP | Toxic Air Pollutant |
| TCDD | Tetrachlorodibenzodioxin |
| TCE | Tetrachloroethylene, perchloroethylene |
| TCLP | Toxic Characteristic Leaching Procedure |
| Third Third | June 1, 1990, Federal Register (55 FR 22520) - refers to hazardous wastes "landban" land disposal restrictions |
| TOC | Total Organic Carbon |
| TPQ | Threshold Planning Quantity (CERCLA community right-to-know) |
| TQ | Threshold Quantity (spill reporting) |
| TRI | Toxic Release Inventory (CERCLA community right-to-know) |
| TSCA | Toxic Substances Control Act of 1976 - regulates asbestos, PCBs, new chemicals being deveoped for sale and other chemicals |
| TSDF | Treatment, Storage, or Disposal Facility (permitted hazardous waste facility) |
| TSS | Total Suspended Solids |
| TWA | Time Weighted Average |
| UHC | Underlying Hazardous Constituent |
| UIC | Underground Injection Control |
| USCG | United States Coast Guard |
| USDA | United States Department of Agriculture |
| USDW | Underground Source of Drinking Water |
| USPS | United States Postal Service |
| UST | Underground Storage |
| UTS | Universal Treatment Standards: These are the constituent-specific treatment standards found in §268.48. |
| VOC | Volatile Organic Compounds |
| WAP | Waste Analysis Plan - A plan that outlines the procedures necessary to ensure proper treatment, storage, or disposal of hazardous waste. |
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
AANWR: Alaskan Arctic National Wildlife Refuge
AAP: Asbestos Action Program
AAPCO: American Association of Pesticide Control Officials
AARC: Alliance for Acid Rain Control
ABEL: EPA's computer model for analyzing a violator's ability to pay a civil penalty.
ABES: Alliance for Balanced Environmental Solutions
AC: Actual Commitment. Advisory Circular
A&C: Abatement and Control
ACA: American Conservation Association
ACBM: Asbestos-Containing Building Material
ACE: Alliance for Clean Energy
ACE: Any Credible Evidence
ACEEE: American Council for an Energy Efficient Economy
ACFM: Actual Cubic Feet Per Minute
ACL: Alternate Concentration Limit. Analytical Chemistry Laboratory
ACM: Asbestos-Containing Material
ACP: Agriculture Control Program (Water Quality Management); ACP: Air Carcinogen Policy
ACQUIRE: Aquatic Information Retrieval
ACQR: Air Quality Control Region
ACS: American Chemical Society
ACT: Action
ACTS: Asbestos Contractor Tracking System
ACWA: American Clean Water Association
ACWM: Asbestos-Containing Waste Material
ADABA: Acceptable Data Base
ADB: Applications Data Base
ADI: Acceptable Daily Intake
ADP: AHERA Designated Person; Automated Data Processing
ADQ: Audits of Data Quality
ADR: Alternate Dispute Resolution
ADSS: Air Data Screening System
ADT: Average Daily Traffic
AEA: Atomic Energy Act
AEC: Associate Enforcement Counsels
AEE: Alliance for Environmental Education
AEERL: Air and Energy Engineering Research Laboratory
AEM: Acoustic Emission Monitoring
AERE: Association of Environmental and Resource Economists
AES: Auger Electron Spectrometry
AFA: American Forestry Association
AFCA: Area Fuel Consumption Allocation
AFCEE:Air Force Center for Environmental Excellence
AFS: AIRS Facility Subsystem
AFUG: AIRS Facility Users Group
AH: Allowance Holders
AHERA: Asbestos Hazard Emergency Response Act
AHU: Air Handling Unit
AI: Active Ingredient
AIC: Active to Inert Conversion
AICUZ: Air Installation Compatible Use Zones
AID: Agency for International Development
AIHC: American Industrial Health Council
AIP: Auto Ignition Point
AIRMON: Atmospheric Integrated Research Monitoring Network
AIRS: Aerometric Information Retrieval System
AL: Acceptable Level
ALA: Delta-Aminolevulinic Acid
ALA-O: Delta-Aminolevulinic Acid Dehydrates
ALAPO: Association of Local Air Pollution Control Officers
ALARA: As Low As Reasonably Achievable
ALC: Application Limiting Constituent
ALJ: Administrative Law Judge
ALMS: Atomic Line Molecular Spectroscopy
ALR: Action Leakage Rate
AMBIENS: Atmospheric Mass Balance of Industrially Emitted and Natural Sulfur
AMOS: Air Management Oversight System
AMPS: Automatic Mapping and Planning System
AMSA: Association of Metropolitan Sewer Agencies
ANC: Acid Neutralizing Capacity
ANPR: Advance Notice of Proposed Rulemaking
ANRHRD: Air, Noise, & Radiation Health Research Division/ORD
ANSS: American Nature Study Society
AOAC: Association of Official Analytical Chemists
AOC: Abnormal Operating Conditions
AOD: Argon-Oxygen Decarbonization
AOML: Atlantic Oceanographic and Meteorological Laboratory
AP: Accounting Point
APA: Administrative Procedures Act
APCA: Air Pollution Control Association
APCD: Air Pollution Control District
APDS: Automated Procurement Documentation System
APHA: American Public Health Association
APRAC: Urban Diffusion Model for Carbon Monoxide from Motor Vehicle Traffic
APTI: Air Pollution Training Institute
APWA: American Public Works Association
AQ-7: Non-reactive Pollutant Modelling
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 Maintenance Plan; Air-Quality Management Plan
AQSM: Air-Quality Simulation Model
AQTAD: Air-Quality Technical Assistance Demonstration
AR: Administrative Record
A&R: Air and Radiation
ARA: Assistant Regional Administrator; Associate Regional Administrator
ARAC: Acid Rain Advisory Committee
ARAR: Applicable or Relevant and Appropriate Standards, Limitations, Criteria, and Requirements
ARB: Air Resources Board
ARC: Agency Ranking Committee
ARCC: American Rivers Conservation Council
ARCS: Alternative Remedial Contract Strategy
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
ARRP: Acid Rain Research Program
ARRPA: Air Resources Regional Pollution Assessment Model
ARS: Agricultural Research Service
ARZ: Auto Restricted Zone
AS: Area Source
ASC: Area Source Category
ASDWA: Association of State Drinking Water Administrators
ASHAA: Asbestos in Schools Hazard Abatement Act
ASHRAE: American Society of Heating, Refrigerating, and Air-Conditioning Engineers
ASIWCPA: Association of State and Interstate Water Pollution Control Administrators
ASMDHS: Airshed Model Data Handling System
ASRL: Atmospheric Sciences Research Laboratory
AST: Advanced Secondary (Wastewater) Treatment
ASTHO: Association of State and Territorial Health Officers
ASTM: American Society for Testing and Materials
ASTSWMO: Association of State and Territorial Solid Waste Management Officials
AT: Advanced Treatment. Alpha Track Detection
ATERIS: Air Toxics Exposure and Risk Information System
ATS: Action Tracking System; Allowance Tracking System
ATSDR: Agency for Toxic Substances and Disease Registry
ATTF: Air Toxics Task Force
AUSM: Advanced Utility Simulation Model
A/WPR: Air/Water Pollution Report
AWRA: American Water Resources Association
AWT: Advanced Wastewater Treatment
AWWA: American Water Works Association
AWWARF: American Water Works Association Research Foundation.
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
BAP: Benefits Analysis Program
BART: Best Available Retrofit Technology
BASIS: Battelle's Automated Search Information System
BAT: Best Available Technology
BATEA: Best Available Treatment Economically Achievable
BCT: Best Control Technology
BCPCT: Best Conventional Pollutant Control Technology
BDAT: Best Demonstrated Achievable Technology
BDCT: Best Demonstrated Control Technology
BDT: Best Demonstrated Technology
BEJ: Best Engineering Judgement. Best Expert Judgment
BF: Bonafide Notice of Intent to Manufacture or Import (IMD/OTS)
BID: Background Information Document. Buoyancy Induced Dispersion
BIOPLUME: Model to Predict the Maximum Extent of Existing Plumes
BMP: Best Management Practice(s)
BMR: Baseline Monitoring Report
BO: Budget Obligations
BOA: Basic Ordering Agreement (Contracts)
BOD: Biochemical Oxygen Demand. Biological Oxygen Demand
BOF: Basic Oxygen Furnace
BOP: Basic Oxygen Process
BOPF: Basic Oxygen Process Furnace
BOYSNC: Beginning of Year Significant Non-Compliers
BP: Boiling Point
BPJ: Best Professional Judgment
BPT: Best Practicable Technology. Pest Practicable Treatment
BPWTT: Best Practical Wastewater Treatment Technology
BRI: Building-Related Illness
BRS: Bibliographic Retrieval Service
BSI: British Standards Institute
BSO: Benzene Soluble Organics
BTZ: Below the Treatment Zone
BUN: Blood Urea Nitrogen
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
CAFE: Corporate Average Fuel Economy
CAFO: Concentrated Animal Feedlot; Consent Agreement/Final Order
CAG: Carcinogenic Assessment Group
CAIR: Clean Air Interstate Rule: Comprehensive Assessment of Information Rule
CALINE: California Line Source Model
CAM: Compliance Assurance Monitoring rule; Compliance Assurance Monitoring
CAMP: Continuous Air Monitoring Program
CAN: Common Account Number
CAO: Corrective Action Order
CAP: Corrective Action Plan. Cost Allocation Procedure. Criteria Air Pollutant
CAPMoN: Canadian Air and Precipitation Monitoring Network
CAR: Corrective Action Report
CAS: Center for Automotive Safety; Chemical Abstract Service
CASAC: Clean Air Scientific Advisory Committee
CASLP: Conference on Alternative State and Local Practices
CASTNet: Clean Air Status and Trends Network
CATS: Corrective Action Tracking System
CAU: Carbon Adsorption Unit; Command Arithmetic Unit
CB: Continuous Bubbler
CBA: Chesapeake Bay Agreement. Cost Benefit Analysis
CBD: Central Business District
CBEP: Community Based Environmental Project
CBI: Compliance Biomonitoring Inspection; Confidential Business Information
CBOD: Carbonaceous Biochemical Oxygen Demand
CBP: Chesapeake Bay Program; County Business Patterns
CCA: Competition in Contracting Act
CCAA: Canadian Clean Air Act
CCAP: Center for Clean Air Policy; Climate Change Action Plan
CCEA: Conventional Combustion Environmental Assessment
CCHW: Citizens Clearinghouse for Hazardous Wastes
CCID: Confidential Chemicals Identification System
CCMS/NATO: Committee on Challenges of a Modern Society/North Atlantic Treaty Organization
CCP: Composite Correction Plan
CC/RTS:Chemical Collection/ Request Tracking System
CCTP: Clean Coal Technology Program
CD: Climatological Data
CDB: Consolidated Data Base
CDBA: Central Data Base Administrator
CDBG: Community Development Block Grant
CDD: Chlorinated dibenzo-p-dioxin
CDF: Chlorinated dibenzofuran
CDHS: Comprehensive Data Handling System
CDI: Case Development Inspection
CDM: Climatological Dispersion Model; Comprehensive Data Management
CDMQC: Climatological Dispersion Model with Calibration and Source Contribution
CDNS: Climatological Data National Summary
CDP: Census Designated Places
CDS: Compliance Data System
CE: Categorical Exclusion. Conditionally Exempt Generator
CEA: Cooperative Enforcement Agreement; Cost and Economic Assessment
CEAT: Contractor Evidence Audit Team
CEARC: Canadian Environmental Assessment Research Council
CEB: Chemical Element Balance
CEC: Commission for Environmental Cooperation
CECATS: CSB Existing Chemicals Assessment Tracking System
CEE: Center for Environmental Education
CEEM: Center for Energy and Environmental Management
CEI: Compliance Evaluation Inspection
CELRF: Canadian Environmental Law Research Foundation
CEM: Continuous Emission Monitoring
CEMS: Continuous Emission Monitoring System
CEPA: Canadian Environmental Protection Act
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
CERT: Certificate of Eligibility
CESQG: Conditionally Exempt Small Quantity Generator
CEST: Community Environmental Service Teams
CF: Conservation Foundation
CFC: Chlorofluorocarbons
CFM: Chlorofluoromethanes
CFR: Code of Federal Regulations
CHABA: Committee on Hearing and Bio-Acoustics
CHAMP: Community Health Air Monitoring Program
CHEMNET: Chemical Industry Emergency Mutual Aid Network
CHESS: Community Health and Environmental Surveillance System
CHIP: Chemical Hazard Information Profiles
CI: Compression Ignition. Confidence Interval
CIAQ: Council on Indoor Air Quality
CIBL: Convective Internal Boundary Layer
CICA: Competition in Contracting Act
CICIS: Chemicals in Commerce Information System
CIDRS: Cascade Impactor Data Reduction System
CIMI: Committee on Integrity and Management Improvement
CIS: Chemical Information System. Contracts Information System
CKD: Cement Kiln Dust
CKRC: Cement Kiln Recycling Coalition
CLC: Capacity Limiting Constituents
CLEANS: Clinical Laboratory for Evaluation and Assessment of Toxic Substances
CLEVER: Clinical Laboratory for Evaluation and Validation of Epidemiologic Research
CLF: Conservation Law Foundation
CLI: Consumer Labelling Initiative
CLIPS: Chemical List Index and Processing System
CLP: Contract Laboratory Program
CM: Corrective Measure
CMA: Chemical Manufacturers Association
CMB: Chemical Mass Balance
CME: Comprehensive Monitoring Evaluation
CMEL: Comprehensive Monitoring Evaluation Log
CMEP: Critical Mass Energy Project
CNG:Compressedd Natural Gas
COCO: Contractor-Owned/ Contractor-Operated
COD: Chemical Oxygen Demand
COH: Coefficient Of Haze
CPDA: Chemical Producers and Distributor Association
CPF: Carcinogenic Potency Factor
CPO: Certified Project Officer
CQA: Construction Quality Assurance
CR: Continuous Radon Monitoring
CROP: Consolidated Rules of Practice
CRP: Child-Resistant Packaging; Conservation Reserve Program
CRR: Center for Renewable Resources
CRSTER: Single Source Dispersion Model
CSCT: Committee for Site Characterization
CSGWPP: Comprehensive State Ground Water Protection Program
CSI: Common Sense Initiative; Compliance Sampling Inspection
CSIN: Chemical Substances Information Network
CSMA: Chemical Specialties Manufacturers Association
CSO: Combined Sewer Overflow
CSPA: Council of State Planning Agencies
CSRL: Center for the Study of Responsive Law
CTARC: Chemical Testing and Assessment Research Commission
CTG: Control Techniques Guidelines
CTSA: Cleaner TechnologiesSubstitutess Assessment
CV: Chemical Vocabulary
CVS: Constant Volume Sampler
CW: Continuous working-level monitoring
CWA: Clean Water Act (aka FWPCA)
CWAP: Clean Water Action Project
CWTC: Chemical Waste Transportation Council
CZMA: Coastal Zone Management Act
CZARA: Coastal Zone Management Act Reauthorization Amendments
DAPSS: Document and Personnel Security System (IMD)
DBP: Disinfection By-Product
DCI: Data Call-In
DCO: Delayed Compliance Order
DCO: Document Control Officer
DDT: DichloroDiphenylTrichloroethane
DERs: Data Evaluation Records
DES: Diethylstilbesterol
DfE: Design for the Environment
DI: Diagnostic Inspection
DMR: Discharge Monitoring Report
DNA: Deoxyribonucleic acid
DNAPL: Dense Non-Aqueous Phase Liquid
DO: Dissolved Oxygen
DOW: Defenders Of Wildlife
DPA: Deepwater Ports Act
DPD: Method of Measuring Chlorine Residual in Water
DQO: Data Quality Objective
DRE: Destruction and Removal Efficiency
DRES: Dietary Risk Evaluation System
DRMS: Defense Reutilization and Marketing Service
DRR: Data Review Record
DS: Dichotomous Sampler
DSAP: Data Self Auditing Program
DSCF: Dry Standard Cubic Feet
DSCM: Dry Standard Cubic Meter
DSS: Decision Support System; Domestic Sewage Study
DT: Detectors (radon) damaged or lost; Detention Time
DU: Decision Unit. Ducks Unlimited; Dobson Unit
DUC: Decision Unit Coordinator
DWEL: Drinking Water Equivalent Level
DWS: Drinking Water Standard
DWSRF: Drinking Water State Revolving Fund
EA: Endangerment Assessment; Enforcement Agreement; Environmental Action; Environmental Assessment;. Environmental Audit
EAF: Electric Arc Furnaces
EAG: Exposure Assessment Group
EAO: Emergency Administrative Order
EAP: Environmental Action Plan
EAR: Environmental Auditing Roundtable
EASI: Environmental Alliance for Senior Involvement
EB: Emissions Balancing
EC: Emulsifiable Concentrate; Environment Canada; Effective Concentration
ECA: Economic Community for Africa
ECAP: Employee Counselling and Assistance Program
ECD: Electron Capture Detector
ECHH: Electro-Catalytic Hyper-Heaters
ECHO: Enforcement and Compliance History Online
ECL: Environmental Chemical Laboratory
ECOS: Environmental Council of the States
ECR: Enforcement Case Review
ECRA: Economic Cleanup Responsibility Act
ED: Effective Dose
EDA: Emergency Declaration Area
EDB: Ethylene Dibromide
EDC: Ethylene Dichloride
EDD: Enforcement Decision Document
EDF: Environmental Defense Fund
EDRS: Enforcement Document Retrieval System
EDS: Electronic Data System; Energy Data System
EDTA: Ethylene Diamine Triacetic Acid
EDX: Electronic Data Exchange
EDZ: Emission Density Zoning
EEA: Energy and Environmental Analysis
EECs: Estimated Environmental Concentrations
EER: Excess Emission Report
EERL: Eastern Environmental Radiation Laboratory
EERU: Environmental Emergency Response Unit
EESI: Environment and Energy Study Institute
EESL: Environmental Ecological and Support Laboratory
EETFC: Environmental Effects, Transport, and Fate Committee
EF: Emission Factor
EFO: Equivalent Field Office
EFTC: European Fluorocarbon Technical Committee
EGR: Exhaust Gas Recirculation
EH: Redox Potential
EHC: Environmental Health Committee
EHS: Extremely Hazardous Substance
EI: Emissions Inventory
EIA: Environmental Impact Assessment. Economic Impact Assessment
EIL: Environmental Impairment Liability
EIR: Endangerment Information Report; Environmental Impact Report
EIS: Environmental Impact Statement; Environmental Inventory System
EIS/AS: Emissions Inventory System/Area Source
EIS/PS: Emissions Inventory System/Point Source
EJ: Environmental Justice
EKMA: Empirical Kinetic Modeling Approach
EL: Exposure Level
ELI: Environmental Law Institute
ELR: Environmental Law Reporter
EM: Electromagnetic Conductivity
EMAP: Environmental Mapping and Assessment Program
EMAS: Enforcement Management and Accountability System
EMR: Environmental Management Report
EMS: Enforcement Management System
EMSL: Environmental Monitoring Support Systems Laboratory
EMTS: Environmental Monitoring Testing Site; Exposure Monitoring Test Site
EnPA: Environmental Performance Agreement
EO: Ethylene Oxide
EOC: Emergency Operating Center
EOF: Emergency Operations Facility (RTP)
EOP: End Of Pipe
EOT: Emergency Operations Team
EP: Earth Protectors; Environmental Profile; End-use Product; Experimental Product; Extraction Procedure
EPAA: Environmental Programs Assistance Act
EPAAR: EPA Acquisition Regulations
EPCA: Energy Policy and Conservation Act
EPACT: Environmental Policy Act
EPACASR: EPA Chemical Activities Status Report
EPCRA: Emergency Planning and Community Right to Know Act
EPD: Emergency Planning District
EPI: Environmental Policy Institute
EPIC: Environmental Photographic Interpretation Center
EPNL: Effective Perceived Noise Level
EPRI: Electric Power Research Institute
EPTC: Extraction Procedure Toxicity Characteristic
EQIP: Environmental Quality Incentives Program
ER: Ecosystem Restoration; Electrical Resistivity
ERA: Economic Regulatory Agency
ERAMS: Environmental Radiation Ambient Monitoring System
ERC: Emergency Response Commission. Emissions Reduction Credit, Environmental Research Center
ERCS: Emergency Response Cleanup Services
ERDA: Energy Research and Development Administration
ERD&DAA: Environmental Research, Development and Demonstration Authorization Act
ERL: Environmental Research Laboratory
ERNS: Emergency Response Notification System
ERP: Enforcement Response Policy
ERT: Emergency Response Team
ERTAQ: ERT Air Quality Model
ES: Enforcement Strategy
ESA: Endangered Species Act. Environmentally Sensitive Area
ESC: Endangered Species Committee
ESCA: Electron Spectroscopy for Chemical Analysis
ESCAP: Economic and Social Commission for Asia and the Pacific
ESECA: Energy Supply and Environmental Coordination Act
ESH: Environmental Safety and Health
ESP: Electrostatic Precipitators
ET: Emissions Trading
ETI: Environmental Technology Initiative
ETP: Emissions Trading Policy
ETS: Emissions Tracking System; Environmental Tobacco Smoke
ETV: Environmental Technology Verification Program
EUP: End-Use Product; Experimental Use Permit
EWCC: Environmental Workforce Coordinating Committee
EXAMS: Exposure Analysis Modeling System
ExEx: Expected Exceedance
FACA: Federal Advisory Committee Act
FAN: Fixed Account Number
FATES: FIFRA and TSCA Enforcement System
FBC: Fluidized Bed Combustion
FCC: Fluid Catalytic Converter
FCCC: Framework Convention on Climate Change
FCCU: Fluid Catalytic Cracking Unit
FCO: Federal Coordinating Officer (in disaster areas); Forms Control Officer
FDF: Fundamentally Different Factors
FDL: Final Determination Letter
FDO: Fee Determination Official
FE: Fugitive Emissions
FEDS: Federal Energy Data System
FEFx: Forced Expiratory Flow
FEIS: Fugitive Emissions Information System
FEL: Frank Effect Level
FEPCA: Federal Environmental Pesticide Control Act; enacted as amendments to FIFRA.
FERC: Federal Energy Regulatory Commission
FES: Factor Evaluation System
FEV: Forced Expiratory Volume
FEV1: Forced Expiratory Volume--one second; Front End Volatility Index
FF: Federal Facilities
FFAR: Fuel and Fuel Additive Registration
FFDCA: Federal Food, Drug, and Cosmetic Act
FFEO: Federal Facilities Enforcement Office
FFF: Firm Financial Facility
FFFSG: Fossil-Fuel-Fired Steam Generator
FFIS: Federal Facilities Information System
FFP: Firm Fixed Price
FGD: Flue-Gas Desulfurization
FID: Flame Ionization Detector
FIFRA: Federal Insecticide, Fungicide, and Rodenticide Act
FIM: Friable Insulation Material
FINDS: Facility Index System
FIP: Final Implementation Plan
FIPS: Federal Information Procedures System
FIT: Field Investigation Team
FLETC: Federal Law Enforcement Training Center
FLM: Federal Land Manager
FLP: Flash Point
FLPMA: Federal Land Policy and Management Act
FMAP: Financial Management Assistance Project
F/M: Food to Microorganism Ratio
FML: Flexible Membrane Liner
FMP: Facility Management Plan
FMP: Financial Management Plan
FMS: Financial Management System
FMVCP: Federal Motor Vehicle Control Program
FOE: Friends Of the Earth
FOIA: Freedom Of Information Act
FOISD: Fiber Optic Isolated Spherical Dipole Antenna
FONSI: Finding Of No Significant Impact
FORAST: Forest Response to Anthropogenic Stress
FP: Fine Particulate
FPA: Federal Pesticide Act
FPAS: Foreign Purchase Acknowledgement Statements
FPD: Flame Photometric Detector
FPEIS: Fine Particulate Emissions Information System
FPM: Federal Personnel Manual
FPPA: Federal Pollution Prevention Act
FPR: Federal Procurement Regulation
FPRS: Federal Program Resources Statement; Formal Planning and Supporting System
FQPA: Food Quality Protection Act
FR: Federal Register. Final Rulemaking
FRA: Federal Register Act
FREDS: Flexible Regional Emissions Data System
FRES: Forest Range Environmental Study
FRM: Federal Reference Methods
FRN: Federal Register Notice. Final Rulemaking Notice
FRS: Formal Reporting System
FS: Feasibility Study
FSA: Food Security Act
FSS: Facility Status Sheet; Federal Supply Schedule
FTP: Federal Test Procedure (for motor vehicles)
FTS: File Transfer Service
FTTS: FIFRA/TSCA Tracking System
FUA: Fuel Use Act
FURS: Federal Underground Injection Control Reporting System
FVMP: Federal Visibility Monitoring Program
FWCA: Fish and Wildlife Coordination Act
FWPCA: Federal Water Pollution and Control Act (aka CWA). Federal Water Pollution and Control Administration
FY: Fiscal Year
GAAP: Generally Accepted Accounting Principles
GAC: Granular Activated Carbon
GACT: Granular Activated Carbon Treatment
GAW: Global Atmospheric Watch
GCC: Global Climate Convention
GC/MS: Gas Chromatograph/ Mass Spectograph
GCVTC: Grand Canyon Visibility Transport Commission
GCWR: Gross Combination Weight Rating
GDE: Generic Data Exemption
GEI: Geographic Enforcement Initiative
GEMI: Global Environmental Management Initiative
GEMS: Global Environmental Monitoring System; Graphical Exposure Modeling System
GEP: Good Engineering Practice
GFF: Glass Fiber Filter
GFO: Grant Funding Order
GFP: Government-Furnished Property
GICS: Grant Information and Control System
GIS: Geographic Information Systems; Global Indexing System
GLC: Gas Liquid Chromatography
GLERL: Great Lakes Environmental Research Laboratory
GLNPO: Great Lakes National Program Office
GLP: Good Laboratory Practices
GLWQA: Great Lakes Water Quality Agreement
GMCC: Global Monitoring for Climatic Change
G/MI: Grams per mile
GOCO: Government-Owned/ Contractor-Operated
GOGO: Government-Owned/ Government-Operated
GOP: General Operating Procedures
GOPO: Government-Owned/ Privately-Operated
GPAD: Gallons-per-acre per-day
GPG: Grams-per-Gallon
GPR: Ground-Penetrating Radar
GPRA: Government Performance and Results Act
GPS: Groundwater Protection Strategy
GR: Grab Radon Sampling
GRAS: Generally Recognized as Safe
GRCDA: Government Refuse Collection and Disposal Association
GRGL: Groundwater Residue Guidance Level
GT: Gas Turbine
GTN: Global Trend Network
GTR: Government Transportation Request
GVP: Gasoline Vapor Pressure
GVW: Gross Vehicle Weight
GVWR: Gross Vehicle Weight Rating
GW: Grab Working-Level Sampling. Groundwater
GWDR: Ground Water Disinfection Rule
GWM: Groundwater Monitoring
GWP: Global Warming Potential
GWPC: Ground Water Protection Council
GWPS: Groundwater Protection Standard; Groundwater Protection Strategy
HA: Health Advisory
HAD: Health Assessment Document
HAP: Hazardous Air Pollutant
HAPEMS: Hazardous Air Pollutant Enforcement Management System
HAPPS: Hazardous Air Pollutant Prioritization System
HATREMS: Hazardous and Trace Emissions System
HAZMAT: Hazardous Materials
HAZOP: Hazard and Operability Study
HBFC: Hydrobromofluorocarbon
HC: Hazardous Constituents; Hydrocarbon
HCCPD: Hexachlorocyclo-pentadiene
HCFC: Hydrochlorofluorocarbon
HCP: Hypothermal Coal Process
HDD: Heavy-Duty Diesel
HDDT: Heavy-duty Diesel Truck
HDDV: Heavy-Duty Diesel Vehicle
HDE: Heavy-Duty Engine
HDG: Heavy-Duty Gasoline-Powered Vehicle
HDGT: Heavy-Duty Gasoline Truck
HDGV: Heavy-Duty Gasoline Vehicle
HDPE: High Density Polyethylene
HDT: Highest Dose Tested in a study. Heavy-Duty Truck
HDV: Heavy-Duty Vehicle
HEAL: Human Exposure Assessment Location
HECC: House Energy and Commerce Committee
HEI: Health Effects Institute
HEM: Human Exposure Modeling
HEPA: High-Efficiency Particulate Air
HEPA: Highly Efficient Particulate Air Filter
HERS: Hyperion Energy Recovery System
HFC: Hydrofluorocarbon
HHDDV: Heavy Heavy-Duty Diesel Vehicle
HHE: Human Health and the Environment
HHV: Higher Heating Value
HI: Hazard Index
HI-VOL: High-Volume Sampler
HIWAY: A Line Source Model for Gaseous Pollutants
HLRW: High Level Radioactive Waste
HMIS: Hazardous Materials Information System
HMS: Highway Mobile Source
HMTA: Hazardous Materials Transportation Act
HMTR: Hazardous Materials Transportation Regulations
HOC: Halogenated Organic Carbons
HON: Hazardous Organic NESHAP
HOV: High-Occupancy Vehicle
HP: Horse Power
HPLC: High-Performance Liquid Chromatography
HPMS: Highway Performance Monitoring System
HPV: High Priority Violator
HQCDO: Headquarters Case Development Officer
HRS: Hazardous Ranking System
HRUP: High-Risk Urban Problem
HSDB: Hazardous Substance Data Base
HSL: Hazardous Substance List
HSWA: Hazardous and Solid Waste Amendments
HT: Hypothermally Treated
HTP: High Temperature and Pressure
HVAC: Heating, Ventilation, and Air-Conditioning system
HVIO: High Volume Industrial Organics
HW: Hazardous Waste
HWDMS: Hazardous Waste Data Management System
HWGTF: Hazardous Waste Groundwater Task Force; Hazardous Waste Groundwater Test Facility
HWIR: Hazardous Waste Identification Rule
HWLT: Hazardous Waste Land Treatment
HWM: Hazardous Waste Management
HWRTF: Hazardous Waste Restrictions Task Force
HWTC: Hazardous Waste Treatment Council
I/A: Innovative/Alternative
IA: Interagency Agreement
IAAC: Interagency Assessment Advisory Committee
IADN: Integrated Atmospheric Deposition Network
IAG: Interagency Agreement
IAP: Incentive Awards Program. Indoor Air Pollution
IAQ: Indoor Air Quality
IARC: International Agency for Research on Cancer
IATDB: Interim Air Toxics Data Base
IBSIN: Innovations in Building Sustainable Industries
IBT: Industrial Biotest Laboratory
IC: Internal Combustion
ICAIR: Interdisciplinary Planning and Information Research
ICAP: Inductively Coupled Argon Plasma
ICB: Information Collection Budget
ICBN: International Commission on the Biological Effects of Noise
ICCP: International Climate Change Partnership
ICE: Industrial Combustion Emissions Model. Internal Combustion Engine
ICP: Inductively Coupled Plasma
ICR: Information Collection Request
ICRE: Ignitability, Corrosivity, Reactivity, Extraction
ICRP: International Commission on Radiological Protection
ICRU: International Commission of Radiological Units and Measurements
ICS: Incident Command System. Institute for Chemical Studies; Intermittent Control Strategies.; Intermittent Control System
ICWM: Institute for Chemical Waste Management
IDEA: Integrated Data for Enforcement Analysis
IDLH: Immediately Dangerous to Life and Health
IEB: International Environment Bureau
IEMP: Integrated Environmental Management Project
IES: Institute for Environmental Studies
IFB: Invitation for Bid
IFCAM: Industrial Fuel Choice Analysis Model
IFCS: International Forum on Chemical Safety
IFIS: Industry File Information System
IFMS: Integrated Financial Management System
IFPP: Industrial Fugitive Process Particulate
IGCC: Integrated Gasification Combined Cycle
IGCI: Industrial Gas Cleaning Institute
IIS: Inflationary Impact Statement
IINERT: In-Place Inactivation and Natural Restoration Technologies
IJC: International Joint Commission (on Great Lakes)
I/M: Inspection/Maintenance
IMM: Intersection Midblock Model
IMPACT: Integrated Model of Plumes and Atmosphere in Complex Terrain
IMPROVE: Interagency Monitoring of Protected Visual Environment
INPUFF: Gaussian Puff Dispersion Model
INT: Intermittent
IOB: Iron Ore Beneficiation
IOU: Input/Output Unit
IPCS: International Program on Chemical Safety
IP: Inhalable Particles
IPM: Inhalable Particulate Matter. Integrated Pest Management
IPP: Implementation Planning Program. Integrated Plotting Package; Inter-media Priority Pollutant (document); Independent Power Producer
IPCC: Intergovernmental Panel on Climate Change
IPM: Integrated Pest Management
IRG: Interagency Review Group
IRLG: Interagency Regulatory Liaison Group (Composed of EPA, CPSC, FDA, and OSHA)
IRIS: Instructional Resources Information System. Integrated Risk Information System
IRM: Intermediate Remedial Measures
IRMC: Inter-Regulatory Risk Management Council
IRP: Installation Restoration Program
IRPTC: International Register of Potentially Toxic Chemicals
IRR: Institute of Resource Recovery
IRS: International Referral Systems
IS: Interim Status
ISAM: Indexed Sequential File Access Method
ISC: Industrial Source Complex
ISCL: Interim Status Compliance Letter
ISCLT: Industrial Source Complex Long Term Model
ISCST: Industrial Source Complex Short Term Model
ISD: Interim Status Document
ISE: Ion-specific electrode
ISMAP: Indirect Source Model for Air Pollution
ISO: International Organization for Standardization
ISPF: (IBM) Interactive System Productivity Facility
ISS: Interim Status Standards
ITC:Innovative Technology Council
ITC: Interagency Testing Committee
ITRC: Interstate Technology Regulatory Coordination
ITRD: Innovative Treatment Remediation Demonstration
IUP: Intended Use Plan
IUR: Inventory Update Rule
IWC: In-Stream Waste Concentration
IWS: Ionizing Wet Scrubber
JAPCA: Journal of Air Pollution Control Association
JCL: Job Control Language
JEC: Joint Economic Committee
JECFA: Joint Expert Committee of Food Additives
JEIOG: Joint Emissions Inventory Oversight Group
JLC: Justification for Limited Competition
JMPR: Joint Meeting on Pesticide Residues
JNCP: Justification for Non-Competitive Procurement
JOFOC: Justification for Other Than Full and Open Competition
JPA: Joint Permitting Agreement
JSD: Jackson Structured Design
JSP: Jackson Structured Programming
JTU: Jackson Turbidity Unit
LAA: Lead Agency Attorney
LADD: Lifetime Average Daily Dose; Lowest Acceptable Daily Dose
LAER: Lowest Achievable Emission Rate
LAI: Laboratory Audit Inspection
LAMP: Lake Acidification Mitigation Project
LC: Lethal Concentration. Liquid Chromatography
LCA: Life Cycle Assessment
LCD: Local Climatological Data
LCL: Lower Control Limit
LCM: Life Cycle Management
LCRS: Leachate Collection and Removal System
LD: Land Disposal. Light Duty
LD L0: The lowest dosage of a toxic substance that kills test organisms.
LDAR: Leak Detection and Repair
LDC: London Dumping Convention
LDCRS: Leachate Detection, Collection, and Removal System
LDD: Light-Duty Diesel
LDDT: Light-Duty Diesel Truck
LDDV: Light-Duty Diesel Vehicle
LDGT: Light-Duty Gasoline Truck
LDIP: Laboratory Data Integrity Program
LDR: Land Disposal Restrictions
LDRTF: Land Disposal Restrictions Task Force
LDS: Leak Detection System
LDT: Lowest Dose Tested. Light-Duty Truck
LDV: Light-Duty Vehicle
LEL: Lowest Effect Level. Lower Explosive Limit
LEP: Laboratory Evaluation Program
LEPC: Local Emergency Planning Committee
LERC: Local Emergency Response Committee
LEV: Low Emissions Vehicle
LFG: Landfill Gas
LFL: Lower Flammability Limit
LGR: Local Governments Reimbursement Program
LHDDV: Light Heavy-Duty Diesel Vehicle
LI: Langelier Index
LIDAR: Light Detection and Ranging
LIMB: Limestone-Injection Multi-Stage Burner
LLRW: Low Level Radioactive Waste
LMFBR: Liquid Metal Fast Breeder Reactor
LMOP: Landfill Methane Outreach Program
LNAPL: Light Non-Aqueous Phase Liquid
LOAEL: Lowest-Observed-Adverse-Effect-Level
LOD: Limit of Detection
LQER: Lesser Quantity Emission Rates
LQG: Large Quantity Generator
LRTAP: Long Range Transboundary Air Pollution
LUIS: Label Use Information System
MAC: Mobile Air Conditioner
MACT: Maximum Achievable Control Technology
MAPSIM: Mesoscale Air Pollution Simulation Model
MATC: Maximum Acceptable Toxic Concentration
MBAS: Methylene-Blue-Active Substances
MCL: Maximum Contaminant Level
MCLG: Maximum Contaminant Level Goal
MCS: Multiple Chemical Sensitivity
MDL: Method Detection Limit
MEC: Model Energy Code
MEI: Maximally (or most) Exposed Individual
MEP: Multiple Extraction Procedure
MHDDV: Medium Heavy-Duty Diesel Vehicle
MOBILE5A: Mobile Source Emission Factor Model
MOE: Margin Of Exposure
MOS: Margin of Safety
MP: Manufacturing-use Product; Melting Point
MPCA: Microbial Pest Control Agent
MPI: Maximum Permitted Intake
MPN: Maximum Possible Number
MPWC: Multiprocess Wet Cleaning
MRBMA: Mercury-Containing and Rechargeable Battery Management Act
MRF: Materials Recovery Facility
MRID: Master Record Identification number
MRL: Maximum-Residue Limit (Pesticide Tolerance)
MSW: Municipal Solid Waste
MTBE: Methyl tertiary butyl ether
MTD: Maximum Tolerated Dose
MUP: Manufacturing-Use Product
MUTA: Mutagenicity
MWC: Machine Wet Cleaning
NAA: Nonattainment Area
NAAEC: North American Agreement on Environmental Cooperation
NAAQS: National Ambient Air Quality Standards
NACA: National Agricultural Chemicals Association
NACEPT: National Advisory Council for Environmental Policy and Technology
NADP/NTN: National Atmospheric Deposition Program/National Trends Network
NAMS: National Air Monitoring Stations
NAPAP: National Acid Precipitation Assessment Program
NAPL: Non-Aqueous Phase Liquid
NAPS: National Air Pollution Surveillance
NARA: National Agrichemical Retailers Association
NARSTO: North American Research Strategy for Tropospheric Ozone
NAS: National Academy of Sciences
NASA: National Aeronautics and Space Administration
NASDA: National Association of State Departments of Agriculture
NCAMP: National Coalition Against the Misuse of Pesticides
NCEPI: National Center for Environmental Publications and Information
NCWS: Non-Community Water System
NEDS: National Emissions Data System
NEIC: National Enforcement Investigations Center
NEPA: National Environmental Policy Act
NEPI: National Environmental Policy Institute
NEPPS: National Environmental Performance Partnership System
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