Geoengineering Bills by State
2025-2026 Regular Session
Adjourned Session ended Apr 21, 2026
Governor: Kim Reynolds
| Bill # | Details | Effective | Status | |
|---|---|---|---|---|
|
2025-2026 Regular Session
Session Adjourn Tue 21 Apr 2026
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| HF191 | A bill for an act relating to the intentional emission of air contaminants into the atmosphere.(See HF 927.) | Superseded | ||
| Iowa's geoengineering bill takes a minimalist statutory approach, establishing a bare prohibition while delegating the entire enforcement framework—including penalties—to the Environmental Protection Commission through administrative rulemaking. |
Last update Wed 12 Mar 2025 |
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| Note: Iowa renumbers bills during the legislative process. New bill numbers are assigned as the measure progresses. | ||||
| HF927 | A bill for an act relating to the intentional emission of air contaminants into the atmosphere.(Formerly HF 191.) | Missed funnel | ||
| Iowa establishes a geoengineering prohibition through a regulatory framework rather than direct criminal penalties, delegating implementation details entirely to the Environmental Protection Commission's emergency rulemaking authority. |
Last update Thu 3 Apr 2025 |
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| Note: Missed Environmental Protection Committee report date (19 Feb 2026) | ||||
| SF142 | A bill for an act relating to the prohibition of geoengineering activities, providing penalties, and including effective date provisions. | Missed funnel | ||
| Iowa's approach combines expansive definitions covering electromagnetic fields, sound pollution, and radiation with Class D felony penalties, cease-and-desist authority for the Department of Public Safety, and provisions explicitly challenging federal authority by empowering state officials to order the cessation of federal programs. |
Last update Mon 3 Feb 2025 |
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| Note: Missed report by date Judiciary subcommittee (20 Feb 2026) | ||||
| HF2173 | A bill for an act relating to the intentional emission of air contaminants into the atmosphere, including prohibitions and reporting requirements, and providing penalties.(See HF 2640.) | Superseded | ||
| Iowa's HF2173 goes beyond a simple geoengineering ban by establishing a statewide airport surveillance network requiring monthly reports on aircraft equipped for atmospheric dispersal, with felony penalties for violations and personal liability for corporate officers up to $100,000. |
Last update Mon 9 Mar 2026 |
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| Note: Committee report approving bill, renumbered as HF 2640 | ||||
| SF2208 | A bill for an act relating to the prohibition of geoengineering activities, providing penalties, and including effective date provisions.(Formerly SSB 3010.) | Missed 2nd Funnel | ||
| Iowa's bill takes the unusual approach of making Department of Public Safety cease-and-desist orders carry immediate court-order weight based solely on suspicion, while defining prohibited atmospheric activities broadly enough to include electromagnetic fields, sound waves, and light pollution when weather manipulation is intended. |
Last update Mon 16 Feb 2026 |
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| Note: Remained in Technology Committee - missed 2nd funnel | ||||
| SSB3010 | A bill for an act relating to the prohibition of geoengineering activities, providing penalties, and including effective date provisions.(See SF 2208.) | Immediately | Superseded | |
| Iowa's bill takes the unusual approach of making Department of Public Safety cease-and-desist orders carry immediate court-order weight based solely on suspicion, while defining prohibited atmospheric activities broadly enough to include electromagnetic fields, sound waves, and light pollution when weather manipulation is intended. |
Last update Wed 4 Feb 2026 |
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| Note: Replaced by bill SF2208 (2025-2026) | ||||
| HF2640 | A bill for an act prohibiting the intentional emission of air contaminants into the atmosphere, and providing penalties. (Formerly HF 2173.) | Missed 2nd funnel | ||
| Iowa's bill takes a pure criminal-law approach to geoengineering prohibition, placing it in the criminal code as a class D felony with per-day offence stacking. An amendment stripped the bill's original airport surveillance apparatus while adding a carve-out for agricultural aerial applicators. |
Last update Wed 18 Mar 2026 |
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| Note: Passed house, remained in Senate Judiciary committee | ||||
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