Use of COSHH Assessments in the Workplace

4.1        New or Revised Assessments

When the COSHH assessment has been received or completed:

• Check that it adequately covers the proposed uses and amend, if necessary. This will be needed where more than one substance is involved in an activity or where a substance is used in a number of different ways, for example, diluting, spraying and hand applying.
• Sign and date the assessment.
• Ensure employees are informed about the contents of the risk assessment, understand and follow the control measures as outlined within that assessment.

4.2        Reviewing COSHH Assessments

The responsible person will ensure risk assessments are undertaken, and the assessments are kept up to date and reviewed:

• When there has been a change in work procedure.
• If the substance is used for a different task.
• If a substance has changed, e.g. new safety data sheet received.
• Upon HSE direction.
• Following any adverse incident involving the substance or task.
• Annually if there has been no change.

The SDS should be checked for updates when the risk assessment is reviewed.  COSHH Risk Assessments should be kept for three years and must be available for inspection as part of annual inspections and audits.