# The Mines Regulations 2014, Paragraph 9

Extent: E+W+S

In the case of roadways where steel arches are used as the principal support—
(a) the maximum distance between adjacent arches must be 1.2 metres; and
(b) the maximum distance between the last arch before the face and the face must be 3.5 metres.

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Source: https://www.legislation.gov.uk/uksi/2014/3248/schedule/1/paragraph/9 (the official version)
Page: https://openlegislation.uk/mines-regulations-2014/schedule-1/paragraph-9
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.