HIA is a combination of procedures, methods, and tools by which a policy, program, or project may be judged as to its potential effects on the health of a population, and the distribution of those effects within the population.*
*While multiple definitions of HIA exist, this definition established by the World Health Organization is most commonly referred to as a standard.
European Centre for Health Policy, WHO Regional Office for Europe. (1999) Gotherburg Consensus Paper. Health impact assessment: main concepts and suggested approach. Brussels: WHO