ACRONYMS AND ABBREVIATIONS 

 ACR-1 

Acronyms and Abbreviations

Δdv change in deciview 

ACEC Area of Critical Environmental 

Concern 

ACHP Advisory Council on Historic 

Preservation 

ADT average daily traffic 

ADY Alternative Development Year 

AIRFA American Indian Religious Freedom 

Act 

AOU American Ornithologist’s Union 

ANC acid neutralizing capacity 

APD Application for Permit to Drill 

APLIC Avian Power Line Interaction 

Committee 

AQRV Air Quality Related Value 

ARCO Atlantic-Richfield Company 

ARM Administrative Rules of Montana 

Argonne Argonne National Laboratory 

ARS Agricultural Research Service 

AUMs animal unit-months 

BACT Best Available Control Technology 

BCF billion cubic feet 

BER Board of Environmental Review 

bgs below ground surface 

BIA Bureau of Indian Affairs 

BLM U.S. Bureau of Land Management 

BMP Best Management Practice 

BTU British thermal unit 

CAA Clean Air Act 

CBNG coal bed natural gas 

CEQ Council on Environmental Quality 

CERCLA Comprehensive Environmental 

Response, Compensation, and 

Liability Act 

CCS Center for Climate Strategies 

CFR Code of Federal Regulations 

CFS cubic feet per second 

CH4 methane 

CO carbon monoxide 

CO2 carbon dioxide 

COA Condition of Approval 

CSU Controlled Surface Use 

CWA Clean Water Act 

dBA decibels 

DEIS Draft Environmental Impact 

Statement 

DOE U.S. Department of Energy 

DNRC Department of Natural Resources and 

Conservation (Montana) 

DSEIS Draft Supplemental Environmental 

Impact Statement 

dv deciview 

EA Environmental Assessment 

EC electrical conductivity 

EIA Energy Information Administration 

EIS Environmental Impact Statement 

EO Executive Order 

EPA U.S. Environmental Protection 

Agency 

ESA Endangered Species Act 

FEIS Final Environmental Impact 

Statement 

FEMA Federal Emergency Management 

Agency 

FERC Federal Energy Regulatory 

Commission 

FLM Federal land managers 
ACRONYMS AND ABBREVIATIONS 

 ACR-2 

FLPMA Federal Land Policy and Management 

Act 

FR Federal Register 

FSEIS Final Environmental Impact 

Statement 

FWS Fish and Wildlife Service (USDI) 

FY fiscal year 

GHG greenhouse gas 

GIS Geographic Information System 

gpm gallons per minute 

GPO Government Printing Office 

GTI Gas Technology Institute 

HAP hazardous air pollutants 

HCP Habitat Conservation Plan 

HUD U.S. Department of Housing and 

Urban Development 

H2S hydrogen sulfide 

ICC Interstate Commerce Commission 

ITA Indian Trust Asset 

kW kilowatt 

LGST local government severance taxes 

LRPL Least Restrictive Proposed Limit 

MAAQS Montana Ambient Air Quality 

Standards 

MBMG Montana Bureau of Mines & Geology 

MBOGC Montana Board of Oil & Gas 

Conservation 

MBTA Migratory Bird Treaty Act 

MCA Montana Code Annotated 

MCF thousand cubic feet 

MCFO Miles City Field Office 

MDA Montana Department of Agriculture 

MDEQ Montana Department of 

Environmental Quality 

MDT Montana Department of 

Transportation 

MEPA Montana Environmental Policy Act 

MFWP Montana Fish, Wildlife, and Parks 

mg/l milligrams per liter 

MGWPCS Montana Groundwater Pollution 

Control System 

MMB Minerals Management Bureau 

MMM Minimum Mean Monthly 

MNHP Montana Natural Heritage Program 

MPDES Montana Pollutant Discharge 

Elimination System 

MOA Memorandum of Agreement 

MRPL Most Restrictive Proposed Limit 

MSO IM Montana State Office Instruction 

Memorandum 

MT-GAP Montana Gap Analysis Project 

MOU Memorandum of Understanding 

MYBP Millions of Years Before Present 

NAAQS National Ambient Air Quality 

Standards 

NEPA National Environmental Policy Act 

NHPA National Historic Preservation Act 

NO2 nitrogen dioxide 

NOX oxides of nitrogen 

NOA Notice of Availability 

NOI Notice of Intent 

NPDES National Pollutant Discharge 

Elimination System 

NPS National Park Service (USDI) 

NRCS Natural Resources Conservation 

Service (USDA) 

NRHP National Register of Historic Places 

NRIS Natural Resource Information System 

(Montana) 

NSO no surface occupancy 

NTE Not to exceed 

NWP Nationwide 404 Permit 
ACRONYMS AND ABBREVIATIONS 

 ACR-3 

NWR National Wildlife Refuge 

O3 Ozone 

OF Open File (Report) 

OSHA Occupational Safety and Health 

Administration 

PM10 particulate matter less than 10 

microns in diameter (inhalable 

particulate matter) 

PM2.5 particulate matter less than 2.5 

microns in diameter (fine particulate 

matter) 

POD Plan of Development 

ppm parts per million 

PRB Powder River Basin 

PRISM Parameter-elevation Regressions on 

Independent Slopes Model 

PSD Prevention of Significant 

Deterioration 

psi pounds per square inch 

psig pounds per square inch gauge 

RCRA Resource Conservation and Recovery 

Act of 1976 

RFFA Reasonably Foreseeable Future 

Actions 

RFD Reasonably Foreseeable 

Development 

RMP Resource Management Plan 

RMU Regional Monitoring Unit 

ROD Record of Decision 

ROW right-of-way 

SAR Sodium Adsorption Ratio 

SAQA Supplemental Air Quality Analysis 

SCMA Surface Coal Mining Act of 1977 

SDWA Safe Drinking Water Act 

SEIS Supplemental Environmental Impact 

Statement 

SHPO State Historic Preservation Office 

SIP State Implementation Plan (Montana) 

SMA Special Management Area 

SOC Species of Concern 

SN Sundary Notice 

SO2 sulfer dioxide 

SR State Road (when followed 

immediately by the State Road 

number) 

SWQATR Surface Water Quality Analysis 

Technical Report 

T&E Threatened and Endangered 

TAC Technical Advisory Committee 

TCF trillion cubic feet 

TCP traditional cultural property 

TDS total dissolved solids 

TLMD Trust Land Management Division 

TMDL total maximum daily load 

TOC total organic carbon 

TRR Tongue River Railroad 

μeq/1 microequivalents per liter 

μg/m3 micrograms per cubic meter 

μS/cm micro-Siemens per centimeter 

UIC underground injection control 

U.S. United States 

USBR Bureau of Reclamation (USDI) 

U.S.C. United States Code 

USACE U.S. Army Corp of Engineers 

USDA U.S. Department of Agriculture 

USDC U.S. Department of Commerce 

USDI U.S. Department of the Interior 

USFS U.S. Forest Service (USDA) 

USGS U.S. Geological Survey (USDI) 

VOC volatile organic compounds 

VMT vehicle miles traveled 

VRM visual resource management 
ACRONYMS AND ABBREVIATIONS 

 ACR-4 

WAAQS Wyoming Ambient Air Quality 

Standards 

WET whole effluent toxicity 

WMA Wildlife Management Area 

WMP Water Management Plan 

WMPP Wildlife Monitoring and Protection 

Plan 

WNV West Nile Virus 

WQS water quality standards 

WRTR Water Resources Technical Report 

WSA Wilderness Study Area 

WYDEQ Wyoming Department of 

Environmental Quality