







Situation | How Often to Assess |
---|---|
High-risk processes (e.g. welding, spraying, solvents) | Every 6 to 12 months |
Low-risk environments (e.g. offices) | Every 1–3 years or when needed |
COSHH-regulated substances | As specified by your COSHH risk assessment |
After major changes (e.g. new machinery, materials, layout) | Immediately |
Following complaints or incidents | Immediately |
When control measures are installed or altered | Soon after installation, then regularly |