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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
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Title 14
Chapter I
Part 121
Subpart A - Subpart A—General
§ 121.1 - Applicability.
§ 121.2 - Compliance schedule for operators that transition to part 121; certain new entrant operators.
§ 121.4 - Applicability of rules to unauthorized operators.
§ 121.7 - Definitions.
§ 121.9 - Fraud and falsification.
§ 121.11 - Rules applicable to operations in a foreign country.
§ 121.15 - Carriage of narcotic drugs, marihuana, and depressant or stimulant drugs or substances.
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