CFR›Title 50›Chapter I›Part 17›50 CFR Part 17 Subpart I Citation50 CFR Part 17 Subpart IContainsSection § 17.90CorpusDaily eCFRDisplayed edition2026-09-23Last updated2026-09-23 Subpart I—Considerations of Impacts and Exclusions from Critical Habitat Sections § 17.90 § 17.90 Impact analysis and exclusions from critical habitat. Authority16 U.S.C. 1361-1407; 1531-1544; and 4201-4245, unless otherwise noted.Source40 FR 44415, Sept. 26, 1975, unless otherwise noted. Previous H Subpart H—Experimental Populations Next J Subpart J—Interagency Cooperation