# Commission Decision of 30 May 2002 concerning the technical specification for interoperability relating to the rolling stock subsystem of the trans-European high-speed rail system referred to in Article 6(1) of Directive 96/48/EC (notified under document number C(2002) 1952) (Text with EEA relevance) (2002/735/EC), Division 4.2.20: External lights and horn

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

(a) Front and rear lights
As specified in Section 4.2.1, it is permissible for trains to be made up of one or more trainsets. The lights described below shall only appear at the front and rear ends of the complete train formation.
The external lights of driving cabs located at intermediate points within the train shall be kept switched off.
The trainsets shall be fitted with:
three fixed white indicator lamps at the front of the train in the direction of travel, two in a horizontal line on the lower part and a third placed centrally above,
two red indicator lamps at the rear of the train in a horizontal line.
In addition to their traditional role as the front and rear indicator lamps, it shall be possible in emergency to use the lamps in specific ways and arrangements.
The dimensions, fitting, positioning, visibility, intensity, operation, etc., of the lamps shall be as specified in Annex H to this TSI.
(b) Horns
The trainsets shall be fitted with horns with two distinct tones.

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Source: https://www.legislation.gov.uk/eudn/2002/735/annex/division/4/division/4.2/division/4.2.20 (the official version)
Page: https://openlegislation.uk/eu-decision-2002-735/annex/division-4/division-4.2/division-4.2.20
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.