Jump to main content or area navigation.

Contact EPA Pacific Southwest Air Program

Pacific Southwest, Region 9

Serving: Arizona, California, Hawaii, Nevada, Pacific Islands, Tribal Nations

Air Permits

Air Permits Quick Finder

Definitions of Fields on the Permit Transmittal Screen

Additional Information

Additional information about a permit or facility can be stored here.

AFS Plant ID

ID number used to track facilities in airS. The first five digits are the state and county codes.

Applicable Requirements

Lists in generic fashion all applicable requirements that apply to a facility, such as "NSR" (New Source Review) and "NESHAP/MACT" (National Emission Standards for Hazardous Air Pollutants/Maximum Achievable Control Technology).


County in which the facility is located.

County Code

Three digit airS county code.

Description of Proposed Modification

If an applicant is applying for a modification, i.e. adding or changing an emission unit or control device, this field can be used to describe the proposed modification.

EPA First Receives Proposed Permit

Date that EPA first receives a proposed permit starts its review period, which is 45 days for Title V permits.

EPA Review Period Ends

Date that EPA review period ends.


Name of a facility.

General Description of Process/Products

Description of industrial process and/or equipment in use at facility, such as storage and distribution of petroleum or "gas turbine".

Clicking on the icon in this field, if present, will open an engineering the report submitted with a proposed permit.

Clicking on the icon(s) in this field, if present, will open other documents related to the permit, such as correspondence.

Clicking on the icon(s) in this field, if present, will open display the full text of a permit.

Permit Features

Issues of concern to EPA permit reviewers, such as "Permit streamlines overlapping or outdated requirements or "Permit Shield Applies".

Permit Number

Permit number as assigned by the state or local air pollution control agency.

Top of page

Permit Type

Indicates what type of permit the facility has applied for: Operating Permit (Title V), Authority to Construct, Enhanced NSR, Integrated permit (both ATC and Title V), Acid Rain, Federally Enforceable State Operating Permit (FESOP), or Non-federally Enforceable State Operating Permit

Revised End Date of EPA Review Period

End date of EPA's review period, if this date has been revised after the submittal of additional information by the permitting authority.

Standard Industrial Code

Four digit Standard Industrial Code for the facility.

State Code

Two digit airS (Aerometric Information Retrieval System) state code.

State/Local Control Agency

Name of state or local air pollution control agency that issues permits.


Indicates the status of a permit: pre-draft, draft, proposed, or final. EPA has 45 days to review and comment on proposed Title V permits.

Submittal Complete/EPA Review Period Starts

This field is used to indicate the revised start date of EPA's review period in cases where EPA lacked sufficient information to begin its review of a proposed permit when it was first submitted.

This permit is for

Indicates whether a permit applies to a single emission unit, multiple emission units, or the entire facility.

Type of Facility

General description of facility, such as "crude oil production", "power plant" or "stone quarrying and processing".

Type of Permit Action

Indicates whether the permit is an initial (new) permit, an administrative amendment, a minor modification, a significant modification, or a renewal.

VOC, NOx, PM-10, SO2, CO, Lead, and Hazardous Air Pollutants

Regulated pollutants with permitted emission limits in tons per year.

Top of page

Jump to main content.