







For a proper audit, you’ll usually need:
A full list of all hazardous substances on site
Up-to-date Safety Data Sheets (SDS)
Completed COSHH assessments
Evidence of exposure monitoring results
Records of controls like LEV inspections and maintenance
Health surveillance records (where required)
Training logs for workers handling hazardous materials
Auditors mainly want to see that you understand your risks and that your controls actually work. Missing or outdated documentation makes it look like the COSHH system is only “on paper” rather than actively managed.