Brooks Airways has been awarded the Civil Aviation Safety Authority (CASA) PART 121 Certification. This is CASA's highest approval rating, placing Brooks alongside Australia's largest airlines for safety.

The Civil Aviation Safety Authority (CASA) is a government body that ensures the safety of aviation in Australia. They license pilots, register aircraft, certify aerodromes, oversee aviation safety and promote safety awareness. They do this by setting standards and safety outcomes that cover maintenance, airspace, aerodromes, licensing, and all types of operations.

CASA operates within a legislative framework made up of acts, regulations, associated legislative instruments and guidance material.

CASA Part 121 of the Civil Aviation Safety Regulations (CASR) governs air transport operations for larger aeroplanes in Australia, specifically those with more than 9 passenger seats or a maximum take-off weight (MTOW) exceeding 8,618 kg. It sets high safety standards for scheduled airlines and air transport, replacing previous charter and RPT regulations.