You’ll need to meet the required hearing, eyesight (including colour vision), and fitness standards for the role, and be able to work safely, including lone working at some locations.
For hearing; you’ll need to be able to understand and hear normal conversations, use the telephone and hear alarms above background workplace noise. You must not have any condition that could cause sudden or unpredictable hearing loss.
For eyesight; your colour vision must be recorded as normal. The minimum visual-acuity standard is 6/12 in the better eye and 6/36 in the other eye. You must also have full visual fields in both eyes and no eye condition likely to cause a deterioration in vision. If you wear contact lenses, you must carry prescription glasses as a backup on duty.
For speech; any speech impediment will be assessed to confirm you can communicate clearly and work safely in time-critical and safety-critical situations.
The information above is a guide and every candidate is assessed individually. These risks are assessed in line with industry guidance, including the RSSB standard on managing sudden incapacity in safety-critical roles.