# The Miscellaneous Mines Order 1956, Paragraph 17


No person other than a person authorised by the manager of the mine to do so shall transmit any signal from any entrance to a shaft, staple-pit or unwalkable outlet.

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Source: https://www.legislation.gov.uk/uksi/1956/1778/schedule/FIRST/paragraph/17 (the official version)
Page: https://openlegislation.uk/miscellaneous-mines-order-1956/schedule-FIRST/paragraph-17
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.