# The Coal and Other Mines (Locomotives) Order 1956, Paragraph 4


In the case of every locomotive in which the motive power is generated by an electric motor supplied with electricity by a storage battery (in these regulations referred to as a “storage battery locomotive”) that part of the locomotive in which the battery is carried shall be so constructed as to be capable of resisting rough usage and adequately ventilated.

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Source: https://www.legislation.gov.uk/uksi/1956/1771/schedule/FIRST/paragraph/4 (the official version)
Page: https://openlegislation.uk/coal-and-other-mines-locomotives-order-1956/schedule-FIRST/paragraph-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.