When you are ready, your certification body will send in people to compare your ISO 45001 OH&S management system plans, processes, and procedures against the required requirements of ISO 45001 (OH&SMS). Were there any gaps found, and did the auditor’s report indicate these? If so, you will need to correct them and gather evidence showing that they were addressed. Then, when your system is mature and sufficient, your certification body will conduct the main audit to compare your records to your plans and the ISO 45001 (OH&SMS) requirements. Did you address any non-conformances in your process data, internal audits, or management reviews? After some days the audit team will submit a report with their findings, including any corrective actions needed. When they are satisfied that your management system addresses the needs of the ISO 45001 (OH&SMS) requirements, they will submit a recommendation for certification.