May 1978 | Public Law 94-490 | 94th Congress | Source
“It is therefore declared to be the purpose of the Congress in this Act to develop a comprehensive and coordinated national Research and weather modification policy and a national program of weather modification research and development program.”
Link To Full Document_“National Weather Modification Policy Act of 1976”
Link To_15 U.S. Code CHAPTER 9A— WEATHER MODIFICATION ACTIVITIES OR ATTEMPTS; REPORTING REQUIREMENT
“The term “weather modification” means any activity performed with the intention of producing artificial changes in the composition, behavior, or dynamics of the atmosphere.”