ISO 45001 Auditor Training is recommended for anyone who wants to qualify as a Lead Auditor and wants to perform internal or external ISO 45001 (OHSMS) certifications. ISO 45001 2018 Lead Auditor Training from IRQS helps you understand the concepts that revolve around the OHSMS, making you capable of planning, performing and reporting a 1st, 2nd and 3rd party audits.