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Hearing requirements for Air Traffic Controllers

Guidance on Class 3 requirements

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Class 3 hearing requirements

Initial and Renewal/Revalidation

Audiogram:

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

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