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Frequently Used Acronyms and Initialisms

Shortened versions of terms and titles most used by TCEQ staff.

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

Numbers
40 CFR 60
Title 40 Code of Federal Regulations Part 60

A A A A A A A A A A A A A A A A A A A A

AA
atomic absorption
AAS
atomic absorption spectrometry
AASHTO
American Association of State Highway and Transportation Officials
AC
Agency Communications or alternating current
ACFM
actual cubic feet per minute
ACGIH
American Conference of Governmental Industrial Hygienists
ACIN
abatement control identification number
ACT
alternative control technique
ADA
Americans with Disabilities Act
ADR
Alternative Dispute Resolution
ADSO
additional-duty safety officer
ADT
average daily traffic
AER
allowable emission rate
AERCO
Area Emission Reduction Credit Organization
AFJ
agreed final judgment
AFR
air-fuel ratio or annual financial report
AIRPR
Air Policy and Regulations
AIRS
Aerometric Information Retrieval System
ALAPCO
Association of Local Air Pollution Control Officials
ALPM
actual liters per minute
AMOC
alternate methods of control
AOI
area of impact
AOL
alternate opacity limit
AOR
alternate opacity request
AP-42
compilation of air pollutant emission factors
APA
Administrative Procedures Act
API
American Petroleum Institute
APTRA
Administrative Procedures and Texas Register Act
AQ
Air Quality
AQAC
Air Quality Advisory Committee
AQCR
air quality control region
AQMP
Air Quality Modeling Procedures
AQP&A
Air Quality Planning and Assessment
ARPA
Agricultural Resources Protection Authority
As
arsenic
ASA
air stagnation advisory
ASAE
American Society of Agricultural Engineers
ASC
Administrative Services Coordinator
ASDWA
Association of State Drinking Water Administrators
ASR
aquifer storage and retrieval
AST
aboveground storage tank
ASTM
American Society for Testing and Materials
ASTSWMO
Association of State and Territorial Solid Waste Management Officials
ATRV
air toxics response vehicle
ATSDR
Agency for Toxic Substances and Disease Registry
AVO
average vehicle occupancy
AWMA
Air and Waste Management Association

B B B B B B B B B B B B B B B B B B B B

BACM
best available control measures
BACT
best available control technology
BAQC
Bureau of Air Quality Control (City of Houston program)
BAR
Bureau of Automotive Repair
BART
Bay Area Rapid Transit (in San Francisco)
BART
Best Available Retrofit Technology
BECC
Border Environment Cooperation Commission
BEG
Bureau of Economic Geology (UT Austin)
BIF
boilers and industrial furnaces (EPA's)
BMPs
best management practices
BTEX
benzene, toluene, ethyl benzene, and xylene

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C C C C C C C C C C C C C C C C C C C C

C
centigrade
CAFO
concentrated animal feeding operation
CAMS
continuous air monitoring station
CAP
Capacity Assurance Plan or Compliance Advisory Panel (Small Business and Local Government Assistance)
CAPCO
Capital Area Council of Governments
CARB
California Air Resources Board
CARE
clean air responsibility enterprise committee
CAS
carbon adsorption system
CATOX
catalytic oxidation unit
CAUSE
Citizens Allied and United for a Safe Environment
CBBEP
Coastal Bend Bays and Estuaries Program
cc
Corpus Christi or cubic centimeter
CCH
contested case hearing
CCIP
Comprehensive Compliance Inspection Protocol
CCMP
Comprehensive Conservation and Management Plan
CCN
certificate of convenience and necessity
CDBGP
Community Development Block Grant Program
CDC
Centers for Disease Control
CDS
Compliance Data System
CEIS
Computerized Emissions Inventory System
CEMS
Continuous Emission Monitoring System
CERCLA
Comprehensive Environmental Responsibility, Compensation and Liability Act
CFC
chlorofluorocarbon
cfm
cubic feet per minute
CFR
Code of Federal Regulations
CGA
cylinder gas audit
CIN
control equipment identification number
CMA
Chemical Manufacturers Association
CMSA
consolidated metropolitan statistical area
CO
carbon monoxide
CO2
carbon dioxide
COG
Council of Government
COH
coefficient of haze
COMM
Commissioners
CONTOP
continuous smelting-top blowing
CORE
control operations review and evaluation
CPI
consumer price index
CPP
continuing planning process
CRP
Clean Rivers Program
CRT
cathode ray tube
CRWR
Center for Research and Water Resources (UT Austin)
CSGWPP
Comprehensive State Groundwater Protection Program
CSI
Common Sense Initiative
CSR
Center for Space Research (UT Austin)
CTG
Control Techniques Guidelines
CWA
Clean Water Act
CWS
commissioners' work session

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D D D D D D D D D D D D D D D D D D D D

DAC
debutanized aromatic concentrate
DART
Dallas Area Rapid Transit
DERC
discrete emission reduction credit
DFW
Dallas/Fort Worth (Metroplex)
DIR
Department of Information Resources
DO
dissolved oxygen
DOC
Department of Commerce
DOD
Department of Defense
DOE
Department of Energy
DOJ
Department of Justice
DOPA
Dairy Outreach Program Area
DOT
Department of Transportation
DPM
digital panel meter
DPS
Department of Public Safety
DRE
destruction and removal efficiency
dscf
dry standard cubic feet
dscm
dry standard cubic meters
DSS
decision support system
DVM
digital voltmeter

E E E E E E E E E E E E E E E E E E E E

EA
environmental assessment
EC
electron capture
ECO
engineering change order
ECOS
Environmental Council of the States
EDF
Environmental Defense Fund
EDRC
Episode Data Reporting Center
EEOC
Equal Employment Opportunity Commission
EERS
Earth Electrical Resistivity Survey or excess emission reports
EGF
electric generating facility
EGR
exhaust gas recirculation
EI
emissions inventory
EIS
environmental impact statement
EKMA
empirical kinetic modeling approach
EMC
Emergency Management Center
EMR
Environmental Management Report
EMSL
Environmental Monitoring Systems Laboratory
EMTIC
Emission Measurement Technical Information Center
ENF
Enforcement
EPA
U. S. Environmental Protection Agency
EPCCHD
El Paso City-County Health District
EPN
emission point number
E&QA
Engineering and Quality Assurance
ERC
emission reduction credit
ERGO
extended reports and graphic output
EROS
Earth Resources Observation System
ESL
effects screening level
ESP
electrostatic precipitator
ESR
Enforcement System Review
ETBE
ethyl tertiary-butyl ether
ETI
elapsed time indicator
ETR
employee trip reduction
EXEC
Executive

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F F F F F F F F F F F F F F F F F F F F

FA
Financial Administration
FAA
Federal Aviation Administration
FC
fluorocarbons
FCAA
Federal Clean Air Act
FCAAA
Federal Clean Air Act Amendments
FCCU
fluid catalytic cracking unit
FEC
formal enforcement conference
FEMA
Federal Emergency Management Agency, U.S.
FGR
flue gas recirculation
FHWA
Federal Highway Administration
FID
Flame Ionization Detector
FIFRA
Federal Insecticide, Fungicide, and Rodenticide Act
FIN
facility identification number
FIP
Federal Implementation Plan
FIPS
Federal Information Processing Standards
FIT
field inspector training
FLSA
Fair Labor Standards Act
FMLER
Flexible Membrane Liner Evaluation Report
FMVCP
Federal Motor Vehicle Control Program
FO
Field Operations
FONSI
finding of no significant impact
FR
Federal Register
FSR
financial status report or full-scale range
FTE
full-time equivalent
FY
fiscal year

G G G G G G G G G G G G G G G G G G G

GACT
generally available control technology
gal
gallon
GAQM
guideline on air quality models
GBEP
Galveston Bay Estuary Program
GBF
Galveston Bay Foundation
GC
gas chromatograph or gas chromatography
GCCES
Gulf Coast Community Exposure Study
GC/ITD
gas chromatography/ion trap detector
GC/MS
gas chromatography/mass spectrometry
GCPCD
Galveston County Pollution Control District
GFI
ground fault interrupter
GHP
Greater-Houston Partnership
GIS
Geographic Information System
GLC
ground-level concentration
GLO
General Land Office
GLS
ground-level sampling
GPS
Global Positioning System
GPSA
Gas Processors Supplier Association
GPT
gas-phase titration
gr/dscf
grains per dry standard cubic foot
GRTS
Grant Reporting and Tracking System
GWPC
Groundwater Protection Committee, Texas

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H H H H H H H H H H H H H H H H H

HAN
heavy aromatic naphtha
HC
hydrocarbon
HCFC
hydrochlorofluorocarbon
HCPCD
Harris County Pollution Control Department
HEE
health effects evaluation
H-GAC
Houston-Galveston Area Council
HGACOG
Houston-Galveston Area Council of Governments
HHV
higher heating value
Hi-Vol
high-volume air sampler
HON
Hazardous Organics NESHAPS
HOV
high-occupancy vehicle
HR
Human Resources
HRM
Houston Regional Marketing Network
HSWA
Hazardous and Solid Waste Amendments (to RCRA)
HUB
historically underutilized business
HVLP
high-volume, low-pressure
HW
Hazardous Waste
HWIR
hazardous waste identification rules

I I I I I I I I I I I I I I I I I I

I&HW
Industrial and Hazardous Waste
IBEP
Integrated Border Environmental Plan
IBWC
International Boundary and Water Commission
IC
Interstate Compacts or ion chromatograph(y)
ICP
inductively coupled plasma
IDLH
immediate danger to life and health
IF
intergovernmental funding
ILEV
inherently low-emission vehicle
I/M
inspection/maintenance
INE
Insituto Nacional de Ecologia
Intx
Intersection
IP
inhalable particulate
IR
Information Resources
IS
Information Systems
ISC
industrial source complex
ISCST
industrial source complex short-term
ISCLT
industrial source complex long-term
ISO
International Standards Organization
ITD
ion trap detector
ITS
Inspection Targeting Strategy

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K K K K K K K K K K K K K K K K K K K

kg
kilogram

L L L L L L L L L L L L L L L L L L L L L

l
liter
LAB
laboratory
LAER
lowest achievable emission rate
LAR
Legislative Appropriation Request
lb
pound
LBB
Legislative Budget Board
LC
liquid chromatograph(y)
LCRA
Lower Colorado River Authority
LCTS
Legislative Contact Tracking System
LEV
low-emission vehicle
LHV
low heating value
LNB
low-nitrogen oxides (NOx) burner
LOE
level of effort
LOR
liquid organic reactor
LOV
letter of violation
LPST
leaking petroleum storage tanks
LTO
landing and takeoff
LUST
leaking underground storage tanks

M M M M M M M M M M M M M M M M M

MACT
maximum available control technology
MAERT
Maximum Allowable Emission Rate Table
MBE
Minority Business Enterprise
MDERC
mobile discrete emission reduction credit
MERC
mobile emission reduction credit
MFM
mass flowmeter
mL
millilambert
ml
milliliters
MMBtu
million British thermal units
MO
Monitoring Operations
MOA
memorandum of agreement
MOSES
Mothers Organized to Stop Environmental Sins
MOU
memorandum of understanding
MPO
Metropolitan Planning Organization
MPTER
multiple-point Gaussian dispersion algorithm with terrain adjustment
MRAP
Medical Resources Advisory Panel
MS
Mobile Source
MSA
metropolitan statistical area
MSDS
Material Safety Data Sheet
MSS
maintenance, startup, and shutdown
MSW
Municipal Solid Waste
MSWRAC
Municipal Solid Waste Reduction Advisory Committee
MS/Z
multispan/zero box
MTBE
methyl tertiary-butyl ether
MUD
municipal utility district
MVVD
manual vent valve discharge
MW
megawatt

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N N N N N N N N N N N N N N N N N N N N

NAA
nonattainment area
NAAQS
National Ambient Air Quality Standards
NAAS
National Air Audit System
NAD Bank
North American Development Bank
NADP
National Atmospheric Deposition Program
NAFTA
North American Free Trade Agreement
NAMS
national air monitoring station
NAPAP
National Acid Precipitation Assessment Program
NAQTS
national air quality trend station
NAR
nonattainment review
NARMP
National Acid Rain Monitoring Program
NASN
National Air Surveillance Network
NCAMS
noncontinuous air monitoring station
NCP
National Contingency Plan or non-criteria pollutant
NCTCOG
North Central Texas Council of Governments
NDIR
nondispersive infrared analyzer
NEDS
National Emissions Data System
NEPA
National Environmental Policy Act
NEPPS
National Environmental Performance Partnership System
NESCAUM
Northeast States for Coordinated Air Use Management
NESHAPS
National Emission Standards for Hazardous Air Pollutants
NGA
National Governors Association
NIST
National Institute of Standards and Technology
NMOC
nonmethane organic compound
NMVOC
nonmethane VOC
NOx
Nitrogen Oxides
NOAA
National Oceanic and Atmospheric Administration
NORM
naturally occurring radioactive material
NOV
Notice of Violation
NPDES
National Pollutant Discharge Elimination System
NPL
National Priorities List
NPS
nonpoint source
NRCS
Natural Resource Conservation Service
NRDA
natural resource damage assessment
NSPS
New Source Performance Standards
NSF
National Science Foundation
NSR
New Source Review

O O O O O O O O O O O O O O O O O O O

O3
Ozone
OAS
Office of Administrative Services
OBD
on-board diagnostic
OCE
Office of Compliance and Enforcement
OD
outside diameter
ODB
outdoor burning
OEPAA
Office of Environmental Policy, Analysis and Assessment
OLS
Office of Legal Services
ONRW
Outstanding National Resource Waters
OPASA
Off-Permit Application Sources and Activities
OPD
Operating Permits Division
OPRR
Office of Permitting, Remediation and Registration
OSFR
Office of State and Federal Relations
OSHA
Occupational Safety and Health Administration
OSSF
on-site sewage facilities
OTA
Office of Technology Assessment
OWTRC
On-Site Wastewater Treatment Research Council

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P P P P P P P P P P P P P P P P P P P

P2
Pollution Prevention
P4
Permanent Pollution Prevention Program
PACE
People Against a Contaminated Environment
PAMS
Photochemical Air Monitoring Stations
Pb
lead
PBR
permit by rule (formerly “standard exemption”)
PCB
polychlorinated biphenyl
PCV
positive crankcase ventilation
PDS
preliminary determination summary
PE
Professional Engineer
PEL
priority enforcement level or Priority Enforcement List (tires)
PFD
proposal for decision
PGMA
priority groundwater management area
PHHVAS
pesticide head high-volume air sampler
PIC
Public Interest Counsel
PID
photoionization detector
PM
particulate matter
PM10
particulate matter of 10 microns or less
PMI
preventive maintenance instructions
PMR
pollutant mass rate
PMSA
primary metropolitan statistical area
POHC
principal organic hazardous constituent
POTW
publicly owned treatment works
ppb
parts per billion
ppbv
parts per billion by volume
ppm
parts per million
ppmv
parts per million by volume
ppmvd
parts per million by volume, dry
PROFEPA
PROcuradaria FEderal para la Protecion al Ambiente
PS
primary standard
PSD
prevention of significant deterioration
PSDB
point source database
PSI
pollutant standard index
psia
pounds per square inch, absolute
psig
pounds per square inch, gauge
PST
petroleum storage tank
PSTR
petroleum storage tank remediation
PTS
permeation tube system
PVC
polyvinyl chloride

Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q

QA
quality assurance
QC
quality control or Quality Council

R R R R R R R R R R R R R R R R R R

R
Region
RA
risk assessment
RAC
Research Advisory Council
RACM
reasonably available control measures
RACT
reasonably available control technology
RAM
Gaussian-plume multiple-source air quality algorithm
RATA
relative accuracy test audits
RCRA
Resource Conservation and Recovery Act
RCRIS
Resource Conservation Recovery Act Information System
RENEW
Resource Exchange Network for Eliminating Waste
RFC
request for comments
RFP
reasonable further progress orrequest for proposal
RHC
reactive hydrocarbons
RI/FS
remedial investigation/feasibility study
RIM
rule interpretation memo
ROG
reactive organic gas
ROM
regional oxidant model
RP
responsible party
RPR
Responsible Party Remediation
RPRC
Rule and Policy Review Committee
RRC
Railroad Commission of Texas
RS
registered sanitarian
RSD
resultant standard deviation
RTP
Regional Transportation Plan or Research Triangle Park
RVCM
residual vinyl chloride monomer
RVD
relief valve discharge
RVP
Reid vapor pressure
RWA
receiving water assessment
RWCD
residential wood combustion devices

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S S S S S S S S S S S S S S S S S S S

SABCUTS
San Antonio Bexar County Urban Transportation System
SAMWG
Standing Air Monitoring Work Group
SAPEL
Special Authorization Priority Enforcement List (tires)
SARA
Superfund Amendments and Reauthorization Act
SAROAD
storage and retrieval of aerometric data
SAV
site assessment visit
SBEA
Small Business and Environmental Assistance
SBAdv
Small Business Advocate
SCAQMD
South Coast Air Quality Management District (in California)
SCC
source category code or source classification code
SCCM
standard cubic centimeters per minute
SCFM
standard cubic feet per minute
SCERP
Southwest Consortium on Environmental Research and Planning
SCR
selective catalytic reduction
SD
standard deviation
SDWA
Safe Drinking Water Act
SEM
scanning electron microscope
SEMARNAT
Secretaría de Medio Ambiente y Recursos Naturales (in Mexico)
SFA
Stephen F. Austin State Office Building
SFIREG
State-FIFRA Issues Research and Evaluation Group
SIC
source identification code or Standard Industrial Classification
SIF
source investigation form
SIP
State Implementation Plan
SIS
Source Investigation System
SLAMS
state and local air monitoring station
SLER
soil liner evaluation report
SLIAC
State Legislation Impact Assistance
SLPM
standard liters per minute
SLQCP
Soil Liner Quality Control Plan
SMP
State Management Plan
SMSA
standard metropolitan statistical area
SNCR
selective noncatalytic reduction
SOCMI
Synthetic Organic Chemical Manufacturing Industry
SO2
sulfur dioxide
SP
standard permit
SPCC
spill prevention control and countermeasures
SPM
special-purpose monitoring
SPNSS
standards of performance for new stationary sources
SRM
standard reference material
SRU
sulfur recovery unit
SS
Support Services
SSBO
State Small Business Ombudsman
SSI
size-selective inlet
STAAPA
State and Territorial Air Pollution Program Administrators
STEERS
State of Texas Environmental Electronic Reporting System
SWDA
Solid Waste Disposal Act
SWP
Source Water Protection Programs
SWQM
Surface Water Quality Monitoring

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T T T T T T T T T T T T T T T T T T T

TAB
Texas Association of Business
TAC
Texas Administrative Code
TAMU
Texas Agricultural and Mechanical University
TASN
Texas Air Sampling Network
TBA
tertiary-butyl alcohol
TBPC
Texas Building and Procurement Commission
TBT
tributyltin
TC
total carbon
TCAA
Texas Clean Air Act
TCC
Texas Chemical Council
TCLP
toxicity characteristic leaching procedure
TCM
Texas Climatological Model or transportation control measures
TCEQ
Texas Commission on Environmental Quality
TDoC
Texas Department of Commerce
TDF
tire derived fuel
TDH
Texas Department of Health
TEM
Texas Episodic Model
TERP
Texas Emissions Reduction Program
TEXARC
Texas Experiment in Augmenting Rainfall through Cloudseeding
TGWPC
Texas Groundwater Protection Committee
THC
total hydrocarbons
THM
trihalomethane
THROX
thermal heat recovery oxidation unit
TIP
Transportation Improvement Program
Title III
Emergency Planning and Community Right-to-Know Act of 1986
TLAP
Texas Lab Accreditation Program or Texas Land Application Permits
TLC
Texas Legislative Council
TLV
health threshold limit value
TMDL
total maximum daily load
TMOGA
Texas Midcontinent Oil and Gas Association
TNRIS
Texas Natural Resources Information System
TOC
total organic carbon
TOP
Texas Orthoimagery Program (DIR)
TPHA
Texas Public Health Association
TPWD
Texas Parks and Wildlife
TQM
total quality management
TRACS
Texas Regulatory Auditing and Compliance System
TRB
Transportation Research Board
TRI
Toxics Release Inventory
TRIS
toxics release information system
TRRP
Texas Risk Reduction Program
TRS
total reduced sulfur
TS
transfer standard
TSCA
Toxic Substances Control Act
TSL
Texas State Library and Archives
TSP
total suspended particulate
TSS
total suspended solids
TSSWCB
Texas State Soil and Water Conservation Board
TTC
Texas Transportation Commission
TWC
Texas Water Code
TWDB
Texas Water Development Board
TxDOT
Texas Department of Transportation
TxLED
Texas Low Emission Diesel
TxREG
Texas Register

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U U U U U U U U U U U U U U U U U

U/M
upset and maintenance
UAM
urban airshed model
UCR
Utility Certification and Rate Design Program
UIC
Underground Injection Control
ULEV
ultralow emission vehicle
UMTA
Urban Mass Transit Administration
USAS
Uniform Statewide Accounting System
USDoT
U.S. Department of Transportation
USGS
U.S. Geological Survey
USOMB
U.S. Office of Management and Budget
USSCS
U. S. Soil Conservation Service
UST
underground storage tank
UTM
universal transverse mercator

V V V V V V V V V V V V V V V V V V

VAC
volts alternating current
VCU
venturi calibration unit
VDC
volts direct current
VIN
vehicle identification number orvendor identification number
VMT
vehicle miles traveled
VOC
volatile organic compound
VR
vapor recovery
VRO
variable-resistance orifice
VTCS
Vernon's Texas Civil Statutes

W W W W W W W W W W W W W W

WBE
Woman Business Enterprise
WCID
Water Control and Improvement District
WD
wind direction
WER
water-effects ratio
WET
Water Education Teams
WGA
Western Governors Association
WHP
Wellhead Protection Program
WLE
waste load evaluation
WMPs
Waste Management Plans
WQMP
Water Quality Management Plan
WRAC
Waste Reduction Advisory Committee
WRPA
Waste Reduction Policy Act
WS
wind speed
WU
Water Utilities

X X X X X X X X X X X X X X X X X X

XRF
X-ray fluorescence

Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z

ZBB
Zero Base Budget
ZEV
Zero Emission Vehicle

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