Air Quality Permit Applications - DNREC
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Delaware state law requires air quality permits for equipment that has the potential to discharge air contaminants into the atmosphere. State regulations (
7 DE Admin. Code, 1102
) establish permitting procedures and requirements.
Effective Jan. 1, 2026,
natural minor permit applications submitted pursuant to 7 DE Admin. Code 1102 Sections 11.1 and 11.2.1 through 11.2.8 must be submitted through the Digital DNREC platform accessed at
epermitting.dnrec.delaware.gov
Please use the following
Training and Support Resources
to learn more about the use of the ePermitting system:
Guide to Creating and Accessing Your Enterprise Business Account
CROMERR Electronic Signature Authority and Users’ Permissions Guide
Example Application Submission for an Emergency Generator Air Permit
Synthetic Minor and federally enforceable permit applications submitted pursuant to 7 DE Admin. Code 1102 Section 11.2.9 and 11.2.10 should be submitted using the paper application forms below.
The Division of Air Quality suggests that applicants take advantage of a
pre-application review process
to ensure that final applications are both administratively and technically complete.
Mail Application Forms to:
Division of Air Quality
State Street Commons, Suite 6A
100 West Water Street
Dover, Delaware 19904
Make checks payable to “State of Delaware”
The table below lists permit application forms by type and sector. Users should download the forms to their hard drive prior to completing.
Applications should be mailed to the Division of Air Quality, along with
required permit fees
. All checks should be made payable to: State of Delaware.
First time applicants must complete an
Environmental Permit Application Background Statement
. Operators of stationary generators
must register their equipment with the Division of Air Quality
, regardless of whether that equipment requires a permit to operate. Please submit a separate information form for each generator. There is no fee for this notification form.
Air Permitting Guidance Documents
Air Permit Application Process
– Document providing a protocol to follow when permitting an air contaminant source in Delaware.
Stationary Source Impact Analysis
– Document providing guidance in evaluating the impact of new or modified Stationary Sources.
NAAQS Background Concentrations
(Nov. 1, 2025) – Representative contaminant background concentrations in Delaware.
Some source categories subject to the Best Available Control Technology (BACT) requirements of Section 4 of the
Requirements for Preconstruction Review
7 DE Admin. Code 1125
) may be eligible to apply “presumptive BACT” standards for control. Applicants should contact the Division of Air Quality, at 302-323-4542, for more information.
Regulation 1102 Construction Permit Applications
These forms should only be used for permit application submissions pursuant to 7 DE Admin. Code 1102 Sections 11.2.9 and 11.2.10. They may, however, be used for reference when completing an application in the Digital DNREC platform for applications submitted pursuant to 7 DE Admin. Code 1102 sections 11.1 and 11.2.1 through 11.2.8.  Please contact the Division of Air Quality for more information.
Category
Name
Number
Instructions
Notes
Administrative
Administrative Information
AQM-1
Instructions
Required in All Applications
Diagram
Overall Process Flow Diagram
AQM-2
Required in All Applications
Process Equipment
Generic Process Equipment Application
AQM-3.1
Instructions
Equipment Specific
Process Equipment
Boiler Application
AQM-3.2
Instructions
Equipment Specific
Process Equipment
Generator/Engine Application
AQM-3.3
Instructions
Equipment Specific
Process Equipment
Coating Operations Application
AQM-3.4
Instructions
Equipment Specific
Process Equipment
Volatile Organic Storage Tank Application
AQM-3.5
Instructions
Equipment Specific
Process Equipment
Cold Solvent Cleaner (Degreaser) Application
Note:
Regulations Updated (2021)
AQM-3.6
Instructions
Equipment Specific
Process Equipment
Silo Application
AQM-3.7
Instructions
Equipment Specific
Process Equipment
Used Oil Heater Application
AQM-3.8
Instructions
Equipment Specific
Process Equipment
Crushed Stone Equipment Application
AQM-3.9
Instructions
Equipment Specific
Process Equipment
Fines Crusher Application
AQM-3.10
Instructions
Equipment Specific
Process Equipment
Crematories Application
AQM-3.11
Instructions
Equipment Specific
Process Equipment
Printing Operations Application
AQM-3.12
Instructions
Equipment Specific
Process Equipment
Grain Terminal, Elevator, and Drying Application
AQM-3.13
Instructions
Equipment Specific
Control Device
Incinerator, Afterburner, and Oxidizer Application
AQM-4.1
Instructions
Equipment Specific
Control Device
Adsorption Equipment Application
AQM-4.2
Instructions
Equipment Specific
Control Device
Flare Application
AQM-4.3
Instructions
Equipment Specific
Control Device
Scrubber Application
AQM-4.4
Instructions
Equipment Specific
Control Device
Inertial and/or Cyclone Collector Application
AQM-4.5
Instructions
Equipment Specific
Control Device
Baghouse Application
AQM-4.6
Instructions
Equipment Specific
Control Device
Electrostatic Precipitator Application
AQM-4.7
Instructions
Equipment Specific
Control Device
Venturi Scrubber Application
AQM-4.8
Instructions
Equipment Specific
Control Device
Selective Catalytic Reduction (SCR), Selective Non-Catalytic Reduction (SNCR), Non-Selective Catalytic Reduction (NSCR), and Ammonia Injection Application
AQM-4.9
Instructions
Equipment Specific
Control Device
Settling Chamber Application
AQM-4.10
Instructions
Equipment Specific
Control Device
Knockout Application
AQM-4.11
Instructions
Equipment Specific
Emissions Information
Emissions Information
AQM-5
Instructions
Required in All Applications
Air Emissions Modeling
Air Emissions Modeling Application
AQM-6
Instructions
Optional
Emissions Information
CO2 Permit Application
AQM-7
Instructions
Equipment Specific
Other Permitting Programs
Stack Parameter Information
The Division of Air Quality is updating information about where and how permitted facilities release emissions. The updated stack parameter information will help engineers make better use of spatial analysis tools to conduct modeling and solve problems. Permit-holders may use the
Modeling Input Form
and the
Stack Coordinate Tutorial
to collect and report data on their emissions and stacks.
Title V: Major Air Sources
Title V is an air pollution control program
, based on federal law, designed to standardize air quality permits and the permitting process for major sources of air emissions across the country.
Smaller Sources of Air Pollution
Smaller sources of air pollution
, known as “Area Sources,” are smaller activities by businesses or facilities that, when measured across a group of sites, can accumulate to large amounts of pollution impacting Delaware’s air quality.
Vapor Recovery Program
The Division of Air Quality partners with the Division of Waste and Hazardous Substances on the
Vapor Recovery (VR) program
which helps ensure the safe operation of vapor recovery systems at gasoline dispensing facilities. The Tanks Compliance Branch offers information and applications for Stage I and Stage II Vapor Recovery Permits.
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Regulations Updated (2021)
The regulations governing solvent cleaning,
Section 33.0
(Solvent Cleaning and Drying) of the
Control of Volatile Organic Compound Emissions Regulations
7 DE Admin. Code 1124
) have been amended, effective Aug. 11, 2021.
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