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Title 50

Displaying title 50, up to date as of 7/20/2026. Title 50 was last amended 7/20/2026.
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Title 50Wildlife and FisheriesPart / Section
Chapter IVJoint Regulations (United States Fish and Wildlife Service, Department of the Interior and National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Department of Commerce); Endangered Species Committee Regulations400 – 499
Subchapter A400 – 424
Part 402Interagency Cooperation—Endangered Species Act of 1973, as Amended402.01 – 402.48
Subpart AGeneral402.01 – 402.09
§ 402.01Scope.
§ 402.02Definitions.
§ 402.03Applicability.
§ 402.04Counterpart regulations.
§ 402.05Emergencies.
§ 402.06Coordination with other environmental reviews.
§ 402.07Designation of lead agency.
§ 402.08Designation of non-Federal representative.
§ 402.09Irreversible or irretrievable commitment of resources.
Subpart BConsultation Procedures402.10 – 402.16
§ 402.10Conference on proposed species or proposed critical habitat.
§ 402.11Early consultation.
§ 402.12Biological assessments.
§ 402.13Informal consultation.
§ 402.14Formal consultation.
§ 402.15Responsibilities of Federal agency following issuance of a biological opinion.
§ 402.16Reinitiation of consultation.
Subpart CCounterpart Regulations for Implementing the National Fire Plan402.30 – 402.34
§ 402.30Definitions.
§ 402.31Purpose.
§ 402.32Scope.
§ 402.33Procedures.
§ 402.34Oversight.
Subpart DCounterpart Regulations Governing Actions by the U.S. Environmental Protection Agency Under the Federal Insecticide, Fungicide and Rodenticide Act402.40 – 402.48