Frequent Questions

Who regulates cloud seeding and weather modification activities? Are there potential effects?

"Weather modification commonly referred to as cloud seeding, is currently used to increase precipitation from clouds, reduce hail from thunderstorms, and eliminate fogs that reduce visibility, usually at busy airports," according to the North American Weather Modification Council (NAWMC). Exit

State governments often license and regulate weather modification activities such as cloud seeding. For more information, you may want contact the office in your state charged with managing water resources.
Find your State Health and Environmental Agency

Federal law requires most weather modification activities undertaken in the United States to be reported to the National Oceanic and Atmospheric Administration (NOAA). See Part 908-Maintaining Records and Submitting Reports on Weather Modification Activities (PDF) (8 pp, 165 KB, About PDF).

In July, 2009, the Senate Committee on Commerce, Science, and Transportation endorsed the Weather Mitigation Research and Development Policy Authorization Act of 2009 [S. 601], which would "establish a Weather Mitigation Research Program (Program) within the National Science Foundation and authorize a research and development program to improve the understanding of processes relating to [weather modification activities]."
See the Committee's report (PDF) (9 pp, 176 KB, About PDF).

For additional information about weather modification activities, see:

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