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40 CFR 147.302

§ 147.302 Aquifer exemptions.

United States · 40 CFR — Protection of Environment · Status: effective

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40 CFR 147.302, § 147.302 Aquifer exemptions, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/182385
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(a) This section identifies any aquifers of their portions exempted in accordance with §§ 144.7(b) and 146.4 of this chapter at the time of program promulgation. EPA may in the future exempt other aquifers or portions according to applicable procedures without codifying such exemptions in this section. An updated list of exemptions will be maintained in the Regional office. (b) For all aquifers into which existing Class II wells are injecting, those portions within a 1/4 mile radius of the well are exempted for the purpose of Class II injection activities only.

Legislative history

This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.