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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Sep 16, 2025
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Title 18
Chapter III
Part 440 - PART 440—HIGH VOLUME HYDRAULIC FRACTURING
§ 440.1 - Purpose, authority, and relationship to other requirements.
§ 440.2 - Definitions.
§ 440.3 - High volume hydraulic fracturing (HVHF).
§ 440.4 - Wastewater from high volume hydraulic fracturing and related activities.
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