We ensure compliance with CASA, Defence Aviation Safety Regulations (DASR), and Defence standards – our experience covers the full lifecycle of design change management, from classification and compliance planning to verification and system testing.

C4’s expanding capabilities in Uncrewed Aircraft Systems (UAS) Airworthiness enhance our delivery of comprehensive airworthiness solutions. We provide expertise in Operational Airworthiness, develop tailored risk management frameworks, and support UAS regulatory approvals and policy development. From airworthiness assurance to operational risk governance, C4 enables organisations to operate safe, compliant, and mission-ready aviation systems – both crewed and uncrewed.