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Underground Injection Control (UIC)
Contact Us

Class VI Guidance Documents

EPA is continuing to develop guidance documents to support the Class VI regulations. Class VI Guidance documents are prepared to provide:

  • Program implementation assistance for UIC directors
  • Compliance assistance for owners and operators of Class VI wells. 

Guidance documents available for viewing and downloading include:

  • Final Class VI guidance documents
  • Draft Class VI guidance documents (open for public comment)
  • Quick reference guides on Class VI program implementation considerations

Guidance document pages are periodically updated. Please check back for updates.

  • Underground Injection Control Home
  • 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 to ask a question, provide feedback, or report a problem.
Last updated on June 23, 2022
United States Environmental Protection Agency

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