The terms of reference, tasks and financial management of the National Institute of Environmental Health (NIEH) are contained in its Statutes and Bylaws, and are laid down in Government Decree 362/2006 (XII.28.) on the National Public Health and Medical Officer's Service and on the designation of a statutory pharmaceutical authority; in Sections 44-47 of Act CLIV of 1997 on Health, as well as in various pieces of legislation on air, waters, soil, waste and environmental impact assessment.