Health Impact Assessment (HIA): A practical guide for voluntary best practice in Wales
This guide is intended for anyone wishing to carry out a voluntary Health Impact Assessment (HIA).
Health Impact Assessment (HIA): A Practical Guide for Voluntary Best Practice in Wales (2026) has been developed by the Wales Health Impact Assessment Support Unit (WHIASU), Public Health Wales. It updates the previous guide, Health Impact Assessment – A Practical Guide (Wales Health Impact Assessment Support Unit, 2012).
Public bodies in Wales responsible for carrying out statutory HIAs should refer to Health Impact Assessment Regulations (Wales) 2025: A Guide for Public Bodies in Wales (2026).