# The Miscellaneous Mines Order 1956, Paragraph 9


In every shaft and staple-pit provided with winding apparatus, being a shaft or staple-pit in the case of which the distance between the top thereof and the lowest entrance thereto exceeds one hundred and fifty feet or being a shaft or staple-pit in the course of being sunk of a depth exceeding three hundred feet, guides shall be provided for the cage or kibble:
Provided that an inspector may by notice served on the manager exempt a shaft or staple-pit from the requirements of this regulation.

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Source: https://www.legislation.gov.uk/uksi/1956/1778/schedule/FIRST/paragraph/9 (the official version)
Page: https://openlegislation.uk/miscellaneous-mines-order-1956/schedule-FIRST/paragraph-9
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.