Part 119 — Certification: Air Carriers and Commercial Operators
When you need an air-carrier certificate vs. when 91 alone suffices.
Subpart B—Applicability of Operating Requirements to Different Kinds of Operations Under Parts 121, 125, and 135 of This Chapter
Subpart C—Certification, Operations Specifications, and Certain Other Requirements for Operations Conducted Under Part 121 or Part 135 of This Chapter