StacksVerified U.S. regulatory reference

14 CFR §21.173

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Any registered owner of a U.S.-registered aircraft (or the agent of the owner) may apply for an airworthiness certificate for that aircraft. An application for an airworthiness certificate must be made in a form and manner acceptable to the FAA, and may be submitted to any FAA office.