Appendix B. Abbreviations

Abbreviation Expansion
AMS area and mobile source
AQM air quality model
ATP antitampering program
BEIS2 Biogenic Emission Inventory System, version 2
BEIS3 Biogenic Emission Inventory System, version 3
BELD2 Biogenic Emission Landcover Database, version 2
BELD3 Biogenic Emission Landcover Database, version 3
BRK particulate matter from brake component wear
CAA Clean Air Act
CAMX Comprehensive Air Quality Model, with Extensions
CB4 Carbon Bond 4
CEI crankcase extended idle exhaust
CEP Carolina Environmental Program
CEM Continuous Emissions Monitoring
CHIEF Clearinghouse for Inventories and Emission Factors
CMAQ Community Multiscale Air Quality
CMAS Community Modeling and Analysis System
CO carbon monoxide
CRC evaporative crankcase emissions (blow-by)
CTG control technology guideline
CXS crankcase start exhaust
DDDYYYY date in Julian format (3-digit day plus 4-digit year)
DNL evaporative diurnal emissions (heat rise)
EDSS Environment Decision Support System
EFL evaporative fuel leaks
EFV evaporative fuel vapor venting
EGU electric generating utility
EMC Environmental Modeling Center
EMS-95 Emissions Modeling System, ‘95
EPA U.S. Environmental Protection Agency
EPM Evaporative Permeation
EPS Emissions Processor System
EXR exhaust running emissions
EXS exhaust engine start emissions (trip start)
EXT extended idle exhaust
FIA Forest Inventory Area
FIPS U.S. Federal Implementation Planning Standards
GIS geographic information system
GMT Greenwich Mean Time
GUI graphical user interface
HAP hazardous air pollutant
HHMMSS hours (2 digits), minutes (2 digits), seconds (2 digits); other forms are HHHMMSS and HHHHMMSS, which differ only in the number of digits in the hours position
HPC high-performance computing
HOT evaporative hot soak emissions (trip end)
IDA Inventory Data Analyzer
I/M inspection and maintenance
I/O input/output
I/O API Input/Output Applications Programming Interface
lat-lon latitude-longitude
LMOS Lake Michigan Ozone Study
MACT Maximum Achievable Control Technology
MAQSIP Multiscale Air Quality Simulation Platform
MCIP Meteorology-Chemistry Interface Processor
MCPL Meteorology Coupler
MIMS Multimedia Integrated Modeling System
MM5 Pennsylvania State University/National Center for Atmospheric Research fifth-generation Mesoscale Model
MPS major point source
MEPSE major elevated point-source emissions (same as PinG)
MMDDYYYY date in Gregorian format (2-digit month plus 2-digit day plus 4-digit year)
MOVES Motor Vehicle Emission Simulator
MWSS Monday-weekday-Saturday-Sunday
NAICS North American Industrial Classification System
NC DENR North Carolina Department of Environment and Natural Resources
NEI National Emissions Inventory
NetCDF Network Common Data Form
NH3 ammonia
NonEGU Non-electric generating utility
NOx nitrogen oxides
NTI National Toxics Inventory
OAQPS Office of Air Quality Planning and Standards
ORD Office of Research and Development
ORIS Office of Regulatory Information Systems
ORL one record per line
OTAG Ozone Transport and Assessment Group
PAR photosynthetic active radiation
PAH polynuclear aromatic hydrocarbons
PinG plume in grid (same as MEPSE)
PM particulate matter
PM10 particulate matter 10 micrometers or smaller in diameter
PM2.5 particulate matter 2.5 micrometers or smaller in diameter
PMC particulate matter coarse
QA quality assurance
RACT reasonably available control technology
RADM Regional Acid Deposition Model
REMSAD Regulatory Modeling System for Aerosols and Deposition
RFG reformulated gas
RFL evaporative refueling emissions (fuel displacement and spillage)
RH Relative Humidity
RMC Regional Modeling Center
RPD Rate Per Distance
RPP Rate Per Profile
RPV Rate Per Vehicle
RST evaporative running loss emissions
SAPRC Statewide Air Pollution Research Center
SCC Source Classification Code
SIC Standard Industrial Classification
SIP State Implementation Plan
SMOKE Sparse Matrix Operator Kernel Emissions
SPEED Average Hourly Speed Inventory Data
SO2 sulfur dioxide
TIR particulate matter from tire wear
TOG total organic gases
UAM-AERO Urban Airshed Model, Aerosols
UAM-IV Urban Airshed Model, version IV
UAM-V Urban Airshed Model, Variable grid
UNC University of North Carolina
UTM Universal Transverse Mercator
VERDI Visualization Environment for Rich Data Interpretation
VMT vehicle miles traveled
VOC volatile organic compounds
VPOP Vehicle Population