ACRONYMS, ABBREVIATIONS, AND SYMBOLS

ACEC Area of Critical Environmental Concern

AIM Assessment, Inventory, and Monitoring

ALS Acetolactate synthase

AML Appropriate Management Level

ANCSA Alaska Native Claims Settlement Act

ANILCA Alaska National Interest Lands Conservation Act

ARI Aggregate Risk Index

ATV All-terrain vehicle

AUM Animal Use Months

BA Biological Assessment

BLM Bureau of Land Management

BMP Best management practices

BP Before the present

C-14 Carbon-14

CalEPA California Environmental Protection Agency

CALPUFF California Puff

CDC Centers for Disease Control and Prevention

CEQ Council on Environmental Quality

CFR Code of Federal Regulations

CH4 Methane

CO Carbon monoxide

CO2 Carbon dioxide

CO2e Carbon dioxide equivalent

CWMA Cooperative Weed Management Area

EIS Environmental Impact Statement

EO Executive Order

ERA Ecological risk assessment

ESA Endangered Species Act

FAQ Frequently asked questions

FLPMA Federal Land Policy and Management Act

FR Federal Register

FRCC Fire regime condition class

FTE Full-time equivalent

FY Fiscal Year

GHG Greenhouse gas

GIS Geographic Information System

GLEAMS Groundwater Loading Effects of Agricultural Management Systems

HHRA Human health risk assessment

HMA Herd Management Area

in2 Square inch(es)

IVM Integrated vegetation management

IWM Integrated weed management

km Kilometer(s)

Koc Organic carbon-water partition coefficient

lb Pound(s)

LOC Level of Concern
m3 Cubic meter(s)

mg/L Milligram(s)s per liter

mi2 Square mile(s)

mL/g Milliliter(s) per gram

mph Mile(s) per hour

MT Metric ton(s)

MTCO2e/yr Metric ton(s) carbon dioxide equivalents per year

MSDS Material Safety Data Sheet

N2O Nitrous oxide

NA Not applicable or not available

NAAQS National Ambient Air Quality Standard

NAWQA National Water Quality Assessment

NC Not calculated

NCHS National Center for Health Statistics

NEPA National Environmental Policy Act

NHPA National Historic Preservation Act

NIOSH National Institute for Occupational Safety and Health

NLCS National Landscape Conservation System

NMFS National Oceanic and Atmospheric Administration National Marine Fisheries Service

NO2 Nitrogen dioxide

NOI Notice of intent

NOx Nitrogen oxides

NRHP National Register of Historic Places

NYSDEC New York State Department of Environmental Conservation

O3 Ozone

OHV Off-highway vehicle

Pb Lead

PEIS Programmatic Environmental Impact Statement

PER Programmatic Environmental Report

PM Particulate matter

PM2.5 Fine particulate matter less than 25 microns in diameter

PM10 Particulate matter less than 10 microns in diameter

ppb Parts per billion

ppm Parts per million

PSD Prevention of Significant Deterioration

ROD Record of Decision

ROW Right-of-way

RQ Risk quotient

SDS Safety Data Sheet

SHPO State Historic Preservation Officer

SO2 Sulfur dioxide

SOP Standard operating procedure

TSP Total suspended particles

U.S. United States

U.S.C. United States Code

USDA U.S. Department of Agriculture
USDOI U.S. Department of Interior

USEPA U.S. Environmental Protection Agency

USFWS U.S. Fish and Wildlife Service

USGS U.S. Geological Survey

UTV Utility terrain vehicle

VOC Volatile organic compound

VRI Visual Resource Inventory

VRM Visual Resource Management

WSA Wilderness Study Area

WSSA Weed Science Society of America

WUI Wildland urban interface

μg Micrograms

μg/m3 Micrograms per cubic meter

2,4-D 2,4 dichlorophenoxyacetic acid