Code of Federal Regulations > Title 40 > Chapter I > Part 144 > Subpart G - Subpart G—Requirements for Owners and Operators of Class V Injection Wells

U.S. Code of Federal Regulations

Regulations most recently checked for updates: Jan 21, 2026

DEFINITION OF CLASS V INJECTION WELLS

§ 144.80 - What is a Class V injection well?

§ 144.81 - Does this subpart apply to me?

§ 144.79 - General.

REQUIREMENTS FOR ALL CLASS V INJECTION WELLS

§ 144.82 - What must I do to protect underground sources of drinking water?

§ 144.83 - Do I need to notify anyone about my Class V injection well?

§ 144.84 - Do I need to get a permit?

ADDITIONAL REQUIREMENTS FOR CLASS V LARGE-CAPACITY CESSPOOLS AND MOTOR VEHICLE WASTE DISPOSAL WELLS

§ 144.85 - Do these additional requirements apply to me?

§ 144.86 - What are the definitions I need to know?

§ 144.87 - How does the identification of ground water protection areas and other sensitive ground water areas affect me?

§ 144.88 - What are the additional requirements?

§ 144.89 - How do I close my Class V injection well?