From 5 April 2025, the Civil Aviation Act 2023 replaces the Civil Aviation Act 1990. References to the 1990 Act, on this website and related material, are progressively being updated.
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Last updated: April 2025
Traumatic brain injuries
Migraines and headaches
Loss of consciousness (non-traumatic)
Seizure disorders
Meningitis / encephalitis
Transient global amnesia
Parkinson’s disease
Cerebrovascular diseases / accidents
Demyelinating disease
Neurocognitive impairment