Applicability

This regulation introduces the subpart that establishes what operators need to do to get certified and operate under Part 121 (scheduled airlines and large aircraft operations) or Part 135 (commuter and on-demand operations). It tells you that the following sections will cover:

• The certification requirements you must meet to operate commercially
• What will be included in your operations specifications (OpSpecs)—the FAA-approved document that details exactly how your company is authorized to operate
• Other requirements specific to Part 121 or 135 operations

Think of this as the table of contents for the certification process. If you're planning to work for or start an airline, air taxi, or charter operation, this subpart outlines the regulatory framework you'll operate under. The actual detailed requirements follow in subsequent sections of Subpart C.

*This is a plain-English summary for study only. The official 14 CFR text on this page is controlling — always read the current regulation and consult a CFI.*