
The Wales Health Impact Assessment Support Unit (WHIASU) is based in the Policy and International Health Directorate, Public Health Wales.
This site provides information on the Wales HIA Support Unit, Health Impact Assessment (HIA) and the process as practiced in Wales, news and recent developments. It provides a resource to those currently practicing HIA, policy makers and those who are new to the process and who are looking for information and evidence. There are links to completed HIAs in Wales and other HIA activities from the Unit, for example training and information plus links to useful resources and guides.
Latest News

Volunteers to showcase their work at the next HIA Network of Practice event in May:
We are excited to announce that WHIASU will be hosting our next HIA Network of Practice event on Wednesday the 21st May 2025 from 10:00 – 12:00. This will be a great opportunity for members to showcase their HIA-related work, exchange insights, and have any HIA questions answered by the WHIASU team. If you would […]

Introduction to Health Impact Assessment E-learning course moved to Learning@Wales site
The Wales Health Impact Assessment Support Unit’s (WHIASU) free Introduction to Health Impact Assessment (HIA) e-learning is now available to access in a new location. The course is now hosted on the Learning@Wales platform, where WHIASU can set up our own accounts for users to access the course. The course is available to anyone to […]

Wales Health Impact Assessment Support Unit marks 20 years of ‘shaping a healthier Wales’
The Wales Health Impact Assessment Support Unit (WHIASU) has marked 20 years of helping to “shape a healthier, more equitable Wales”. The unit, which provides guidance, training, resources and information in relation to the practice of health impact assessment, celebrated the milestone anniversary on November 14 by hosting a webinar in partnership with Public Health Network Cymru. […]

HIA Network of Practice Event
WHIASU@20: 14th November 2024 13:00 – 15:00 The landscape of Health Impact Assessment (HIA) has changed massively over the last 20 years, and the Wales Health Impact Assessment Support Unit (WHIASU) have been right at the heart of it since its founding in 2004. This webinar will be a chance for attendees to look at […]

Upcoming HIA Network of Practice Events
Health Impact Assessment and Social Return on Investment – Capturing the health impacts and social value of public health Wednesday 28th August 2024, 10:00 – 11:00 This next webinar in the WHIASU HIA network series of events will explore the concept of social value and its relationship with Health Impact Assessment (HIA). We will look […]

Assessing public health implications of free trade agreements: The comprehensive and progressive Trans-Pacific Partnership Agreement
In 2016, the United Kingdom voted to exit the European Union, which was surrounded by political and social uncertainty. The United Kingdom now negotiates its own trade agreements, and in March 2023, it agreed to join the Comprehensive and Progressive Trans-Pacific Partnership Agreement (CPTPP). A health impact assessment (HIA) was undertaken in 2022–23 to predict […]