U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 43Chapter IIPart 8200Subpart 8223 - Subpart 8223—Research Natural Areas
§ 8223.0-1 - Purpose.
§ 8223.0-5 - Definitions.
§ 8223.0-6 - Policy.
§ 8223.1 - Use of research natural areas.
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