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  2. Underground Injection Control (UIC)

Quick Reference Guides on Class VI Program Implementation

The Class VI guidance documents linked below were prepared specifically for UIC program directors. They present considerations and suggestions for implementing various aspects of the Class VI program.

  • Geologic Sequestration of Carbon Dioxide - UIC Quick Reference Guide - Additional Considerations for UIC Program Directors on Interstate Coordination Requirements for the Class VI Injection Well Permitting Process (pdf) (62.08 KB)  The purpose of this document is to provide additional considerations for UIC program directors on interstate coordination requirements for the Class VI injection well permitting process. Notification of specific agencies at the state, Tribal, and territorial level (by the UIC program director) regarding the receipt of a Class VI injection well permit application should afford such entities an opportunity to provide input on any relevant activities in the permit application review process.
  • Underground Injection Control (UIC) Class VI Program - Public Participation Considerations for Geologic Sequestration Projects Fact Sheet (pdf) (33.56 KB, December 2010, 816-F-10-072 )
    This fact sheet is designed to assist UIC Program Directors and Class VI well owners or operators in developing a plan to educate and engage the public on geologic sequestration (GS) projects, as well as the permitting considerations for a particular proposed Class VI injection well site.

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 March 11, 2025
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