# Fire Certificates (Special Premises) Regulations (Northern Ireland) 1991, Paragraph 21


Any doors opening on to any staircase or corridor from any room in the building or part of the building in which more than 10 persons are employed, except in the case of sliding doors, are constructed to open outwards.

---
Source: https://www.legislation.gov.uk/nisr/1991/446/schedule/1/paragraph/21 (the official version)
Page: https://openlegislation.uk/fire-certificates-special-premises-regulations-northern-ireland-1991/schedule-1/paragraph-21
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.