The practical rules shine a tangible, pragmatic light on the certification requirements for quality, environmental and occupational health & safety management systems according to the ISO 9001, ISO 14001, OHSAS 18011 and ILO OSH standards. The Practical Rules are designed as a series of questions and answers that are now grouped into families according to different topics, including a feature entitled “Certifying your management system”, which covers the rules that AFNOR Certification has defined to govern how certification audits are conducted.