ISO 45001:2018 Certification - Occupational Health & Safety Management System (OH&S) - UKAS Accreditation (United Kingdom). Comply with OH&S regulations in the workplace as your organization participates in the global supply chain. ISO 45001:2018 Certification - Occupational Health & Safety Management System (OH&S) - UKAS Accreditation (United Kingdom). Comply with OH&S regulations in the workplace as your organization participates in the global supply chain. ISO 45001:2018 Certification – Occupational Health & Safety Management System (OH&S) – UKAS Accreditation (United Kingdom) Introduction The objective of the ISO 45001:2018 certification assessment service with UKAS (United Kingdom) accreditation is to provide organizations with a <Detail>