Water safety plans (WPS) have been implemented in every region of the world, and many implementing countries have included WSPs in drinking-water policies or regulations. Enforcement of WSP requirements, as well as general WSP success and sustainability, requires ongoing WSP auditing, i.e. independent and systematic checks of WSP completeness, implementation in practice and effectiveness.

This training package presents guidance on preparing for and conducting a WSP audit, covering such topics as the aim and role of auditing, audit criteria, audit timing and frequency and audit reporting. It provides practical tools to support auditors conduct successful audits for continuous WSP improvement.