OHSAS 18001 has been the recognized occupational health and safety management system standard since 1999. A new ISO standard, ISO 45001, is being developed to replace OHSAS 18001. ISO 45001 has a stronger focus on organizational context, leadership roles, and risk-based approaches. It also uses a common structure and terms aligned with other ISO standards. While the overall aim of reducing risks remains the same, ISO 45001 includes changes like greater emphasis on top management responsibility and identifying and controlling risks rather than just hazards. Organizations should prepare to transition to meeting the requirements of ISO 45001 when it is published in October 2016.