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  2. Underground Injection Control (UIC)

Class VI (Geologic Sequestration) Permit Application and Permitting Tools

On this page:

  • Class VI Permit Application Completeness Checklist
  • Rules and Tools Crosswalk Report
  • Class VI Permit Application Outline
  • Community Engagement and Reporting Template
  • Additional Information

Class VI Permit Application Completeness Checklist 

EPA developed a completeness checklist for Class VI permit applications. The document includes a list of information that must be submitted with a Class VI permit application in order for that application to be deemed administratively complete by the permitting authority. A link to the completeness checklist is provided below.

Class VI Permit Application Completeness Checklist (pdf) (273.97 KB)


Rules and Tools Crosswalk: A Compendium of Computational Tools to Support Geologic Carbon Storage Environmentally Protective UIC Class VI Permitting

The U.S. Department of Energy's (DOE) Office of Fossil Energy and Carbon Management (FECM) in coordination with EPA have released the "Rules and Tools Crosswalk: A Compendium of Computational Tools to Support Geologic Carbon Storage Environmentally Projective UIC Class VI Permitting" report. This report, published by DOE's National Energy Technology Lab (NETL), summarizes computational tools and methods that may be used to address specific requirements of the Class VI (Geologic Sequestration) permit application process. The computation tools, listed and described in a comprehensive appendix, relate to the technical aspects of permitting geologic sequestration wells, including induced seismicity, geo-mechanical and geophysical modeling, reservoir modeling, injection modeling, and area of review determination. A link to the report is provided below.

Rules and Tools Crosswalk: A Compendium of Computational Tools to Support Geologic Carbon Storage Environmentally Protective UIC Class VI Permitting (pdf) (1.73 MB)

For 508 Compliance and Accessibility concerns, please contact Sharon Newman by phone (202-564-8136) or email (UIC-ClassVI@epa.gov).


Class VI Permit Application Outline

EPA developed a permit application outline for UIC Class VI wells. The document provides an overview of the items and the associated activities an applicant may complete during the development of an application to inject CO2 for GS under the UIC Class VI program. The outline also functions as a detailed index to multiple EPA Class VI guidance documents, which contain information relevant to the completion of a Class VI application. Prospective permit applicants are encouraged to consult with their UIC permitting authority about specific needs for their project early in the application process. Applicants are also encouraged to review the Class VI Rule and EPA guidance documents, which are available on EPA’s website in order to gain a greater understanding of the Class VI permit application process. A link to the permit application outline is provided below.

Class VI Permit Application Outline (pdf) (251 KB)


Community Engagement and Reporting Template for Class VI Applicants and Operators

Community engagement refers to the activities used to meaningfully include all affected populations in decision-making that supports carbon dioxide geologic sequestration project development and management. The EPA encourages broad community engagement by Class VI project developers before, during, and after project conception, Class VI application submittal, site development, and Class VI project management. Engagement fosters relationships, creates opportunities for public participation, and demonstrates a willingness to incorporate input. This approach can generate local and larger community buy-in for a Class VI project and lay the foundation for future work.

The below documents may be used by Class VI applicants and operators to support their engagement with the communities surrounding Class VI project areas. MS Word versions are available upon request.

Class VI Community Reporting Template Blank (pdf) (381.69 KB)

Class VI Community Reporting Template Example (pdf) (669.64 KB)

Class VI Community Engagement Guidelines (pdf) (1.14 MB)


Additional Information

  • Resources for the Geologic Sequestration Data Tool
  • Class VI guidance documents

Underground Injection Control (UIC)

  • Class I Industrial and Municipal Waste Disposal Wells
  • Class II Oil and Gas Related Injection Wells
  • Class III Injection Wells for Solution Mining
  • Class IV Shallow Hazardous and Radioactive Injection Wells
  • Class V Wells for Injection of Non-Hazardous Fluids into or Above Underground Sources of Drinking Water
  • Class VI Wells Used for Geologic Sequestration of CO2
Contact Us About Underground Injection Control
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on January 17, 2025
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