BAA Board of Assistance Appeals

BACM Best available control measures

BACT Best available control technology

BADT Best available demonstrated technology

BAPS Baseline air pollution station

BAT Best available technology

B:C Benefit:cost ratio

BCT Best control technology

BDAT Best demonstrated available technology

BDCT Best demonstrated control technology

BDOC Biodegradable organic carbon

BDOM Biodegradable organic matter

BDT Best demonstrated technology

BEJ Best engineering judgment; best expert judgment

BENCHMARC Biodegradation of environmental chemicals modeled with aquatic, relative-rate coefficients

BEST Biomonitoring of Environmental Status and Trends

BET Brunaur, Emmet, and Teller

BID Background information document

BIOMASS Biological investigations of marine antarctic systems and stocks

BIOS Biological Data System

BLL Blood lead level

BIS Bio-geographic information system

BLM Bureau of Land Management

BNC Base neutralizing capacity

BOD Biological oxygen demand; biochemical oxygen demand

BOM Background organic matter

BP Boiling point

BPJ Best professional judgment

BPT Best practicable technology; best practicable treatment

BPWTT Best practical wastewater treatment technology

BS British Standard

CA Cooperative agreement(s); corrective action

CAA Compliance assurance agreement, Clean Air Act

CAAA Clean Air Act Amendments

CAD Computer aided drafting/drawing

CADRE Computer-aided data retrieval and evaluation software

CAFF Conservation of Arctic Flora and Fauna

CAFO Consent agreement/final order

CAG Carcinogenic assessment group

CAO Corrective action order

CAP Corrective action plan; cost allocation procedure

CAP88-PC Clean Air Act Assessment Package-1988

CARA Chemical assessments and related activities

CARCAH Chief, Aerial Reconnaissance Coordination, All Hurricanes

CARS Corrective Action Reporting System

CAS Chemical Abstract Service

CAU Carbon adsorption unit; command arithmetic unit

CBA Chesapeake Bay Agreement; cost benefit analysis

CBOD Carbonaceous biochemical oxygen demand

CBP Chesapeake Bay Program

C-CAP Coastwatch Change Analysis Program (NOAA)

CCDP Calcium carbonate dissolving potential

CCP Composite Correction Program

CCPP Calcium carbonate precipitation potential

CD Compact disk

CDA Copper Development Association

CDC Centers for Disease Control and Prevention; Conservation Data Center

CDBG Community development block grant

CD ROM Compact disk read only memory

CDS Compliance data system

CEA Cooperative enforcement agreement; cost and economic assessment, cost effective analysis

CEAM Center for Exposure Assessment Modeling

CEB Chemical element balance

CEC Council on Environmental Cooperation

CEE Center for Environmental Education, comprehensive environmental evaluation

CEEM Center for Energy and Environmental Management

CEI Compliance evaluation inspection

CENR Committee on Environment and Natural Resources

CERI Center for Environmental Research Information

CERL Corvallis Environmental Research Laboratory; Corps of Engineers Research Lab

CEQ Council on Environmental Quality

CERCLA Comprehensive Environmental Response, Compensation, and Liability Act

CES Committee on Earth Science

CESQG Conditionally xxempt small quantity generator

CFD Cumulative frequency distribution

CFR Code of Federal Regulations

CHEM Chemical Collection Database

CHEMNET Chemical Industry Emergency Mutual Aid Network

CHESS Community Health and Environmental Surveillance System

CIS Chemical information system; contract information system

CICIS Chemicals in Commerce Information System

CLEVER Clinical Laboratory for Evaluation and Verification of Epidemiologic Research

CLF Conservation Law Foundation

CLP Contact laboratory program

CLU-IN Clean-up Information Bulletin Board System

CM Corrective measure

CMA Chemical Manufacturers Association

CMB Chemical mass balance

CME Comprehensive monitoring evaluation

CMEL Comprehensive monitoring evaluation log

CNG Compressed natural gas

CO/CO Contractor owned/contractor operated

COD Chemical oxygen demand

CODA Conservation Options and Decision Analysis (software)

CONUS Continental United States

CPF Carcinogenic potency factor

CPI Consumer Price Index

CPO Certified project officer

CPU Central processing unit

CQA Construction quality assurance

CRADAS Cooperative Research and development agreements

CRL Central regional laboratory

CRMP Coordinated Resource Management Plan

CROP Consolidated rules of practice

CRT Cathode ray tube

CRUC Cooperative Research Unit Center

CSIN Chemical Substances Information Network

CSMoS Center for Subsurface Modeling Support

CSO Combined sewer overflow

CST Central Standard Time

CT Residual disinfection concentration

CVCP Chlorinated polyvinyl chloride

CWA Clean Water Act

CWAP Clean Water Action Project

CZMA Coastal Zone Management Act

CZARA Coastal Zone Management Act Reauthorization Amendments