By law nonfederally sponsored weather modification activities must be reported to the National Oceanic and Atmospheric Administration (NOAA); Federal projects are also reported by agreement with applicable agencies. Reports
of activities conducted at 74 locations in the United States during GY 1974 are summarized herein. The analysis covers the purpose of the weather modification project, location, sponsors, operators. modification equipment, techniques, target areas, seeding agents. seeding duration, and target areas. Discussions of environmental impact and project safety are also included. Some trends in nonfederal activities from CY 1973 to CY 1974 are indicated. A list of reported activities is given in an appendix.