Permit Applications

(.xlsx file extension is a Microsoft Excel Open XML Spreadsheet (XLSX). You can also open this format in other spreadsheet applications, such as Apple Numbers, Google Docs, and OpenOffice.)

The above linked Application Dataset contains a list of applications for permits the District has received and is processing. Many types of equipment and processes require authorization from the Air Pollution Control District before installing, modifying, or operating (information on the types of operations and businesses that need this authorization can be found here).

To aid in understanding the dataset, the following describe some of the information presented:

  • Column C (Due Date for Application Posting) lists the date by which the District must post the application, pursuant to California Health & Safety Code 40100.6.5(a)(1)(C) (AB423).
  • Column D (Record Status) shows the current status of the application, as follows:
    • Open: The application is under review
    • Approved: The permit has been approved and issued
    • Cancelled: The application has been canceled
    • Denied: The District has denied the application
    • Note that applications will remain on this dataset until 30 days after they are Approved, Cancelled, or Denied
  • Column E (Status Date) shows the date the Record Status changed
  • Column H (Source Category Description) shows the type of equipment that has been applied for. Note that the alphanumeric code at the start of each line is simply used by the District for billing purposes
  • Column K (Will Operation Exceed 180 Days) indicates if the application is for short term or long term, and that may affect which Rules and Regulations apply to the equipment

There are 3 types of authorizations that are included in the Application Dataset. Most applications will be for equipment or operations that require an Authority to Construct and Permit to Operate, and will have “APP” in the Application Record ID.

Certain types of equipment do not have much impact on air quality, and therefore only require Registration, and will include “CER” in the Application Record ID.

Larger sources may also require a Federal Operating Permit known as Title V.  Title V Applications have “APP” in the Application Record ID and will show the type of application in the Title V Permit Action Type column.

The District will accept public comments on any permit application during the review process. This review process can take from a few days for simple equipment and up to six months for more complicated evaluations.

To comment on a specific application, please click on the Application Record ID within the dataset to submit your comment(s) via email. General comments can also be emailed to Additionally, certain applications will require public notifications and formal comment periods.

If you would like to view the application materials, please click the link at the far right of the dataset for the application you are interested in. Note that if the applicant has requested certain information in the application to be considered trade secret, as allowed by District Rule 175, there may be a delay in posting the entire application while that request is reviewed.

Details on currently active permits are available here.

The review process for applications for Authority to Construct and Permit to Operate are available here.