National Chapters

IAH’s 53 national chapters are voluntary groups that operate within their own national regulatory frameworks while upholding IAH’s principles and aims. Each chapter develops its own identity and activities—often with unique logos—and focuses on locally relevant talks,...

Support to members

Education and Outreach is a vital part of IAH’s mission to further the understanding, wise use and protection of groundwater resources throughout the world. In 2025 we supported our commissions, networks and national chapters in running webinars by hosting the events...