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UK Civil Aviation Regulations

These are published by the CAA on our UK Regulations pages. EU Regulations and EASA Access Guides published by EASA no longer apply in the UK. Our website and publications are being reviewed to update all references. Any references to EU law and EASA Access guides should be disregarded and where applicable the equivalent UK versions referred to instead.

Class 3 hearing requirements

Initial and Renewal/Revalidation


Frequency in Hz Maximal acceptable hearing loss in dB
500 35
1000 35
2000 35
3000 50

Validity periods for audiograms

Age Frequency
Under 40 4 yearly
40 plus 2 yearly