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Juneau State Office Mailing Address Update

All mail sent to the DEC office in Juneau through the U.S. Postal Service must be addressed to P.O. Box 111800. Beginning October 1, all mail addressed to our Willoughby Avenue address will not be delivered and will be returned to sender by the Post Office. This change only impacts incoming mail to the Juneau office.

Glossary & Abbreviations

Ambient Air
The air occurring at a particular time and place outside of structures. Often used interchangeably with outdoor air.
Area-wide Sources (also known as "area" sources)
Stationary sources of pollution (e.g., water heaters, gas furnaces, fireplaces, and woodstoves) that are typically associated with homes and non-industrial sources.
Attainment Area
A geographic area in which levels of a criteria air pollutant meet the health-based primary standard (national ambient air quality standard, or NAAQS) for the pollutant. An area may have an acceptable level for one criteria air pollutant, but may have unacceptable levels for others. Thus, an area could be both attainment and nonattainment at the same time.
Best Available Control Technology/Best Available Control Measure (BACT/BACM)
The most up-to-date methods, systems, techniques, and production processes available to achieve the greatest feasible emission reductions for given regulated air pollutants and processes.
Criteria Pollutants
The 1970 amendments to the Clean Air Act required EPA to set National Ambient Air Quality Standards for certain pollutants known to be hazardous to human health. EPA has identified and set standards to protect human health and welfare for six pollutants; ozone, carbon monoxide, total suspended particulates, sulfur dioxide, lead, and nitrogen oxide. The term, "criteria pollutants" derives from the requirement that EPA must describe the characteristics and potential health and welfare effects of these pollutants.
Emission Inventory
A catalog or listing of emissions from a source, usually based on measurements, calculations, or other information regarding pollutant information.
Federal Clean Air Act (FCAA)
A federal law passed in 1970 and amended in 1977 and 1990 which forms the basis for the national air pollution control effort.
µg/m3
A concentration of an air pollutant (e.g. ozone) is given in micrograms (one-millionth of a gram) per cubic meter air.
Maintenance Area
An area that had previously been designated a nonattainment area, but now meets applicable air quality standards.
Memorandum of Understanding (MOU)
A document describing a bilateral or multilateral agreement between parties. It expresses a convergence of will between the parties, indicating an intended common line of action.
Mobile Sources
Moving objects that release pollution, mobile sources include cars, trucks, buses, planes, trains, motorcycles and gasoline-powered lawn mowers.
Nonattainment
A geographic area that does not meet, or exceeds, established air pollution levels.
Parts per Million (ppm)
A ratio of the amount of one substance to the amount of another, expressed as a unit of solute dissolved in one million units of solution. It denotes the number of units of one substance relative to one million units of another substance.
Primary Standards
National ambient air quality standards designed to protect human health with an adequate margin for safety.
Public Notice
Notification to the public of a pending permit and inviting public comment.
Secondary Standards
National ambient air quality standards designed to protect welfare, including effects on soils, water, crops, vegetation, man-made materials, animals, wildlife, weather, visibility, and climate; damage to property, transportation hazards, economic values, and personal comfort and well-being.

Abbreviations

ADEC
Alaska Department of Environmental Conservation
BACM
best available control measure
BACT
best available control technology
CAA
Clean Air Act
CARB
California Air Resources Board
CFR
Code of Federal Regulations
CNG
compressed natural gas
CO
carbon monoxide
EI
Emissions Inventory
EPA
U.S. Environmental Protection Agency
FIP
Federal Implementation Plan
g/hp-hr
grams per horsepower-hour
GIS
Geographic Information System
g/mi
grams per mile
GVWR
gross vehicle weight rating
HAP
hazardous air pollutant
HC
hydrocarbon
HDD
heavy-duty diesel
HDDV
heavy-duty diesel vehicle
HDV
heavy-duty vehicle
hp
horsepower
km
kilometer
LDT
light-duty truck
LED
low-emission diesel
LEV
low-emission vehicle
LNG
liquefied natural gas
LSG
low-sulfur gasoline
m
meter
MACT
maximum achievable control technology
MPH
miles per hour
MY
model year
NAAQS
National Ambient Air Quality Standards
NOx
nitrogen oxides
O3
ozone
OBD
onboard diagnostics
OTAQ
the EPA 's Office of Transportation and Air Quality
Pb
lead
PCV
positive crankcase ventilation
PM
particulate matter
PM2.5
particulate matter smaller than 2.5 microns
PM10
particulate matter smaller than 10 microns
ppb
parts per billion
ppm
parts per million
QA/QC
quality assurance / quality control
RACT
reasonably available control technology
RFG
reformulated gasoline
RPM
revolutions per minute
SCC
source classification code
SIP
State Implementation Plan
SO2
sulfur dioxide
TCM
transportation control measures
TIP
Transportation Implementation Plan
TPD
tons per day
TPY
tons per year
TSP
total suspended particulate
VID
Vehicle Identification Database
VIN
Vehicle Identification Number
VIR
vehicle inspection report
VMT
vehicle miles traveled
VOC
volatile organic compounds