By Florin Necula, PhD | CAMO NP & Licensed Aircraft EngineerJan 6th, 2026 1. INTRODUCTION AND BACKGROUND The Airworthiness Review Certificate (ARC) is a foundational element within the European continuing airworthiness regulatory framework. Established under Regulation (EU) No. 1321/2014, the ARC represents an independent attestation that an aircraft continues to conform to its approved type