TAOS Certification and Engineering LLC is a consultancy and training company which provides solutions and supports in safety critical development, design and production projects in aviation. TAOS consulting services includes product certifications, organization certifications (Part 21 Subpart J (DOA), Part 21 Subpart G (POA)) and system safety engineering. TAOS training courses mostly focus on certification processes (Part 21 courses) and system development and safety assessments processes (SAE-ARP-4754B, SAE-ARP-4761A, risk management courses).