# The Coal and Other Mines (Ventilation) (Variation) Regulations 1966, Regulation 5


After regulation 7 of the principal regulations there shall be added the following regulation:—
“7A On every occasion on which a determination of firedamp content is required to be made at or as near as is practicable to the point in an airway serving a longwall face thirty feet from the nearest working place at that face, being an airway which as regards that face is a return airway, a determination of firedamp content shall also be made as near as is practicable to the point in that airway thirty feet from the junction thereof with any other return airway.”

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Source: https://www.legislation.gov.uk/uksi/1966/1139/regulation/5 (the official version)
Page: https://openlegislation.uk/coal-and-other-mines-ventilation-variation-regulations-1966/regulation-5
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.