# Directive 2007/59/EC of the European Parliament and of the Council of 23 October 2007 on the certification of train drivers operating locomotives and trains on the railway system in the Community, Division 1.3

Extent: E+W+S+N.I.

Hearing and speaking requirements
Sufficient hearing confirmed by an audiogram, i.e.:
hearing good enough to hold a phone conversation and to be able to hear warning sounds and radio messages.
The following values should be taken as guidelines:
the hearing deficiency must not be higher than 40 dB at 500 and 1 000 Hz,
the hearing deficiency must not be higher than 45 dB at 2 000 Hz for the ear with the worst air conduction of sound,
no anomaly of the vestibular system,
no chronic speech disorder (given the necessity to exchange messages loudly and clearly),
the use of hearing aids is allowed in special cases.

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Source: https://www.legislation.gov.uk/eudr/2007/59/annex/II/division/1/division/1.3 (the official version)
Page: https://openlegislation.uk/eu-directive-2007-59/annex-II/division-1/division-1.3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.