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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
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Title 43
Part 11
Subpart B - Subpart B—Preassessment Phase
§ 11.20 - Notification and detection.
§ 11.21 - Emergency restorations.
§ 11.22 - Sampling of potentially injured natural resources.
§ 11.23 - Preassessment screen—general.
§ 11.24 - Preassessment screen—information on the site.
§ 11.25 - Preassessment screen—preliminary identification of resources potentially at risk.
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