Idaho House Bill 669

13 February 2026 | ZeroGeoengineering.com | Proposed legislation HB 669 — Amends, repeals, and adds to existing law to revise provisions regarding cloud seeding activities.

RELATING TO CLOUD SEEDING; REPEALING SECTION 42-4301, IDAHO CODE, RELATING TO CLOUD SEEDING; AMENDING CHAPTER 43, TITLE 42, IDAHO CODE, BY THE ADDITION OF A NEW SECTION 42-4301, IDAHO CODE, TO ESTABLISH PROVISIONS REGARDING CLOUDSEEDING; AMENDING SECTION 42 605, IDAHO CODE, TO REMOVE A REFERENCE TO CLOUD SEEDING AND TO MAKE TECHNICAL CORRECTIONS; AMENDING SECTION42 1805, IDAHO CODE, TO REMOVE REFERENCES TO CLOUD SEEDING AND WEATHER MODIFICATION AND TO MAKE TECHNICAL CORRECTIONS; REPEALING SECTION 46-1015, IDAHO CODE, RELATING TO WEATHER MODIFICATION; AND DECLARING AN EMERGENCY.

“42-4301. CLOUD SEEDING. (1) The legislature finds that:
(a) Idaho’s economy and the welfare of its citizens depend on a reliable and clean water supply;
(b) Data accumulated and analysis undertaken since the initiation of the cloud seeding program demonstrates that cloud seeding lacks provable outcomes. In 2024, the government accountability office found, “when uncertainty was considered in estimates of cloud seeding effectiveness, the estimated effect was not distinguishable from zero with a high degree of statistical confidence (e.g., with 95 percent confidence)”; and
(c) Cloud seeding, weather modification, and other forms of geo-engineering violate the Idaho constitution, section 1, article I, which provides for the inalienable rights of man, and that all men are by nature free and equal, and have certain inalienable rights, among which are enjoying and defending life and liberty, acquiring, possessing and protecting property, and pursuing happiness and securing safety.
(2) All cloud seeding programs along with all other weather modification activities are hereby prohibited and banned from occurring in the state of Idaho. Any and all aerial or ground-based cloud seeding projects or programs or any other form of weather modification shall be ceased indefinitely.”