Approved Document N: Glazing – safety in relation to impact, opening and cleaning

Requirements N3 and N4 were introduced in January 1998 and deal with the safe cleaning, opening and closing of windows, etc. The Workplace (Health, Safety and Welfare) Regulations 1992 – Main requirements, relating to building design, are now covered by the Building Regulations. Compliance with Requirements N3 and N4, in accordance with Section 23(3) of the Health and Safety at Work, etc. Act 1974, would prevent the service of an improvement notice under the Workplace Regulations. For further information the Approved Document also makes reference to Approved code of practice and guidance; The Health and Safety Commission, L24 (HMSO 1992).