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American Institute of Hydrology


The bylaws of the American Institute of Hydrology (AIH) requires each member to recertify every five years to maintain your professional certification. AIH has required each member in good standing to report their efforts to maintain their proficiency in hydrology since the early years of the organization. In 2004, in keeping with national trends to enhance renewal and recertification programs, AIH inaugurated a new recertification program. During 2005, the program was revised to address issues raised by the membership. The revised recertification program is now available

The American Institute of Hydrology (AIH) was formed in 1981 as a non-profit scientific and educational organization. AIH is the only nationwide organization to offer certification to professionals in all fields of hydrology. The Institute adheres to the principles of responsible professional conduct and public service.

The purpose of AIH is to enhance and strengthen the standing of hydrology as a science and a profession by:

  • Establishing standards and procedures to certify individuals qualified in surface-water, groundwater, and water-quality hydrology.
  • Establishing and maintaining ethical standards to protect the public from irresponsible work.
  • Providing education and training in hydrology.
  • Providing the public and government advice and guidance concerning activities related to the hydrologic profession.

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