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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
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Title 9
Chapter I
Part 77
Subpart A - Subpart A—General Provisions
§ 77.1 - Material incorporated by reference.
§ 77.2 - Definitions.
§ 77.3 - Tuberculosis classifications of States and zones.
§ 77.4 - Application for and retention of zones.
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