# Commission Decision of 30 May 2002 concerning the technical specification for interoperability relating to the control-command and signalling subsystem of the trans-European high-speed rail system referred to in Article 6(1) of Council Directive 96/48/EC (notified under document number C(2002) 1947) (Text with EEA relevance) (2002/731/EC), Division 3.2.5.1.1: Physical environmental conditions

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

(a) Systems complying with the class A interface requirements shall be capable of operating under the climatic and physical conditions which exist along the relevant part of the trans-European high-speed network (e.g. defined according to climatic zones). For this purpose Annex A, index 3, shall be used.
(b) The systems complying with the class B interface requirements shall conform at least to the physical environmental specifications applying to the corresponding class B system, in order to be capable of operating under the climatic and physical conditions which exist along the high-speed lines concerned.

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Source: https://www.legislation.gov.uk/eudn/2002/731/annex/division/3/division/3.2/division/3.2.5/division/3.2.5.1/division/3.2.5.1.1 (the official version)
Page: https://openlegislation.uk/eu-decision-2002-731/annex/division-3/division-3.2/division-3.2.5/division-3.2.5.1/division-3.2.5.1.1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.