# The Coal Mines (Cardox and Hydrox) Regulations 1956, Regulation 27


If any shell fails to fire, no person shall attempt to remove it from its hole until any external firing wire has been disconnected from it.

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Source: https://www.legislation.gov.uk/uksi/1956/1942/regulation/27 (the official version)
Page: https://openlegislation.uk/coal-mines-cardox-and-hydrox-regulations-1956/regulation-27
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.