# Council Directive 92/91/EEC of 3 November 1992 concerning the minimum requirements for improving the safety and health protection of workers in the mineral-extracting industries through drilling (eleventh individual Directive within the meaning of Article 16 (1) of Directive 89/391/EEC), Division 8.1

Extent: E+W+S+N.I.

Steps shall be taken to ensure that there is sufficient fresh air in enclosed workplaces, having regard to the working methods used and the physical demands placed on the workers.
If a forced ventilation system is used, it must be maintained in working order.
Any breakdown must be indicated by a control system where this is necessary for workers’ health.

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Source: https://www.legislation.gov.uk/eudr/1992/91/annex/part/A/division/8/division/8.1 (the official version)
Page: https://openlegislation.uk/eu-directive-1992-91/annex/part-A/division-8/division-8.1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.