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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.

Medical records system

The guidance on the medical records system (Cellma).offers further information.

Anyone wishing to become an Air Traffic Control Officer (ATCO) will need to obtain a Class 3 medical certificate as part of the licensing requirements. The initial medical examination must be carried out at an Aeromedical Centre.

A step-by-step guide to the classes of medical certificates for pilots and air traffic controllers and how to apply can be found in this overview.


There is no minimum age for the application of a Class 3 medical certificate. However, those applicants under the age of 17 may require additional specialist paediatric review.

What happens next?

The initial medical examination includes:

  • a full physical medical examination by a doctor
  • detailed eyesight tests including a colour vision assessment
  • a resting electrocardiogram (ECG) to check your heart
  • spirometry to assess your lung function
  • an audiogram to evaluate your hearing
  • urine testing
  • blood test to check lipids
Close What happens next?

How long is it valid for?

Validity of medical certificate
Under 40 24 months
  40 plus 12 months
At initial  
  Under 30 48 months
  30 plus At all examinations thereafter
At initial  
  Under 40 48 months
  40 plus 24 months
Comprehensive Ophthalmological examination
At initial  
  If exceeds +3D to -3D 4 years
  If exceeds -6D

2 years

At initial then first examination


  Over 40


Pulmonary function tests
At initial (FEV/FVC), then if clinically indicated


At every examination


Blood lipids
At initial, then at age 40


Close How long is it valid for?