American Institute of Hydrology (AIH)
Interested in AIH Certification? The 2025 exam schedule is now set...
Professional hydrologists (PH) demonstrate their commitment to technical sufficiency, ethics, and the industry’s growth!
Latest News
Upcoming Events
06
December
2024
9:00 am - 12:00 pm
For more information, contact AIH Membership & Certification Database Manager, Ginger Tinsley at admin@aihydrology.org or call 540-500-1933. The Hydrologist-in-Training (HIT) membership is for new college graduates who have passed the […]
06
December
2024
9:00 am - 12:00 pm
For more information, contact AIH Membership & Certification Database Manager, Ginger Tinsley at admin@aihydrology.org or call 540-500-1933. The Hydrologic Technician (HT) has an emphasis on hands-on knowledge and field experience. The certification […]
10
January
2025
9:00 am - 1:00 pm
For more information, contact AIH Membership & Certification Database Manager, James DiBenedetto at admin@aihydrology.org or call 540-500-1933. The Professional Hydrologist certification is conferred by AIH on professionals who demonstrate competence in the […]
07
March
2025
9:00 am - 1:00 pm
For more information, contact AIH Membership & Certification Database Manager, James DiBenedetto at admin@aihydrology.org or call 540-500-1933. The Professional Hydrologist certification is conferred by AIH on professionals who demonstrate competence […]
09
May
2025
9:00 am - 1:00 pm
For more information, contact AIH Membership & Certification Database Manager, James DiBenedetto at admin@aihydrology.org or call 540-500-1933. The Professional Hydrologist certification is conferred by AIH on professionals who demonstrate competence in the […]
11
July
2025
9:00 am - 1:00 pm
For more information, contact AIH Membership & Certification Database Manager, James DiBenedetto at admin@aihydrology.org or call 540-500-1933. The Professional Hydrologist certification is conferred by AIH on professionals who demonstrate competence in the […]
12
September
2025
9:00 am - 1:00 pm
For more information, contact AIH Membership & Certification Database Manager, James DiBenedetto at admin@aihydrology.org or call 540-500-1933. The Professional Hydrologist certification is conferred by AIH on professionals who demonstrate competence in the […]
06
October
2025
All day
Bristlecone Convention Center,
150 Sixth Street
Ely, Nevada 89301 United States
Ely, Nevada 89301 United States
2025 National Cave & Karst Management Symposium Hosted by the Western Cave Conservancy Cave and karst resource management spans a wide array of scientific and recreational disciplines. Across North America, […]
14
November
2025
9:00 am - 1:00 pm
For more information, contact AIH Membership & Certification Database Manager, James DiBenedetto at admin@aihydrology.org or call 540-500-1933. The Professional Hydrologist certification is conferred by AIH on professionals who demonstrate competence in the […]
Who We Are
The American Institute of Hydrology (AIH) was founded in 1981 as a non-profit scientific and educational organization dedicated to the certification and registration of professionals in all fields of hydrology. AIH is the only nationwide organization that offers certification to qualified hydrologic professionals.
AIH PURPOSE
The purpose of AIH is to enhance and strengthen the standing of hydrology as a science and profession by:
- Establishing standards and procedures to certify individuals qualified to practice hydrology
- Establishing and maintaining ethical standards to protect the public from irresponsible work
- Providing education, public advice, and training in hydrology
MEMBERSHIP BENEFITS
The benefits of being a member of AIH include:
- Peer and employer recognition of professional competence in hydrology for career advancement
- Certification to perform duties specified by certain agencies
- Association to a nationwide network of hydrologists
- Access to and opportunities for contributing to AIH Bulletin
- Access to career development and continuing education resources
- Eligibility for annual awards
Examinations
Unlike certification examinations for other organizations, AIH examinations focus solely on knowledge and understanding of hydrology.
- The Professional Hydrologist Examination
- The Hydrologic Technician Examination
Benefits of Certification
Certification by AIH provides a means by which the public, employers, and clients can recognize those hydrologic professionals who are judged by their peers to possess the proper and necessary qualifications to practice their profession with integrity.
Benefits of being certified by AIH include:
- Peer recognition of professional competence in hydrology
- Career resources
- A nationwide network of hydrologists
- AIH Bulletin
- Access to continuing education resources