Bills Live in the Current Session
| Bill # | Details | Effective | Status | |
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Michigan (2025-2026 Regular Session)
Session Adjourn Thu 31 Dec 2026
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| HB4304 | Environmental protection: air pollution; dispersion of substances or objects into atmosphere; prohibit for purposes of affecting weather. Amends 1994 PA 451 (MCL 324.101 - 324.90106) by adding sec. 5514b. | 31 Mar 2027 | Introduced | |
| Michigan opts for statutory simplicity by adding a single-sentence prohibition to existing environmental law with no specified penalties, enforcement mechanisms, or implementation framework. |
Last update Thu 27 Mar 2025 |
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| Status: Committee On Regulatory Reform (since 26 Mar 2025) Unmoved for over a year - unlikely to ever see progress before the session closes at the end of the year. | ||||
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New Hampshire (2026 Regular Session)
Session Adjourn Tue 30 Jun 2026
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| HB1128 | Restricting the use of weather modification technologies to declared emergencies. | 60 days | Engrossed | |
| New Hampshire would restrict cloud seeding to verified extreme drought conditions lasting at least 90 days, replacing the state's existing open-ended weather modification authorisation with a drought-contingent regulatory framework that requires environmental review and public disclosure. |
Last update Thu 14 May 2026 |
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| Status: Passed by the House, recommended by the Senate committee, but laid on table by Senate (since 14 May 2026) | ||||
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New Jersey (2026-2027 Regular Session)
Session Adjourn Thu 31 Dec 2026
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| S934 | Prohibits release of certain substances into atmosphere for purposes of geoengineering. | Immediately | Introduced | |
| New Jersey's bill takes a distinctive approach by limiting its prohibition to "hazardous" substances used for geoengineering rather than banning all atmospheric releases, while creating a citizen science-style monitoring program that accepts everything from smartphone photos to spectrometry reports as evidence of potential violations. |
Last update Tue 13 Jan 2026 |
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| Status: Senate Environment and Energy Committee (since 13 Jan 2026) | ||||
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New York (2025-2026 Regular Session)
Session Adjourn Thu 4 Jun 2026
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| A05476 | Prohibits the intentional injection, release or dispersion, by any means, of chemicals, chemical compounds, substances or apparatus within the borders of this state into the atmosphere with the express purpose of affecting temperature, weather or the intensity of sunlight; provides the department will establish a reporting process for violations; provides penalties for such violations. | Immediately | Introduced | |
| New York's A05476-A would make geoengineering and weather modification a Class E felony, with a mandatory monthly reporting requirement that compels operators of public infrastructure — airports, transit systems, bridges — to file reports on any aircraft they observe that appear configured for atmospheric modification activities. |
Last update Fri 6 Feb 2026 |
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| Status: Environmental conservation (since 14 Feb 2025) (revised 6 Feb 2026) | ||||
| S08529 | Prohibits the intentional injection, release or dispersion, by any means, of chemicals, chemical compounds, substances or apparatus within the borders of this state into the atmosphere with the express purpose of affecting temperature, weather or the intensity of sunlight; provides the department will establish a reporting process for violations; provides penalties for such violations. | Immediately | Introduced | |
| New York's S.8529-A goes far beyond simple prohibition by establishing a dual surveillance system requiring mandatory monthly aircraft monitoring by all public infrastructure operators and a citizen reporting portal, backed by class E felony charges that expose corporate officers to up to 5 years' imprisonment. |
Last update Wed 7 Jan 2026 |
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| Status: Environmental Conservation (since 7 Jan 2026) | ||||
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Ohio (2025-2026 Regular Session)
Session Adjourn Thu 31 Dec 2026
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| HB290 | Enact the Atmosphere Protection Act | 90 days | Introduced | |
| Ohio's "Atmosphere Protection Act" imposes some of the harshest penalties in state weather modification legislation—a mandatory 3-year prison term and a minimum $500,000 fine under strict liability, meaning prosecutors need not prove intent. The Legislative Service Commission's own analysis notes uncertainty about what the undefined term "sunlight reflection methods" actually prohibits. |
Last update Wed 21 May 2025 |
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| Status: Natural Resources Committee (since 21 May 2025) | ||||
| HB272 | Regards food dyes, PFAS, fluoride, and certain substance releases | 90 days | Introduced | |
| Ohio's HB 272 buries a straightforward prohibition on weather modification within an omnibus consumer protection bill covering PFAS chemicals, food dyes, and water fluoridation. The atmospheric release provision is notably modest compared to Ohio's other pending weather modification bill (HB 290), imposing misdemeanour penalties rather than felony charges, suggesting different legislative philosophies on enforcement severity even within the same chamber. |
Last update Wed 14 May 2025 |
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| Status: General Government Committee (since 14 May 2025) Unlikely to proceed | ||||
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Pennsylvania (2025-2026 Regular Session)
Session Adjourn Mon 30 Nov 2026
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| SB508 | Prohibiting solar radiation modification or sunlight reflection methods, cloud seeding and polluting atmospheric interventions within this Commonwealth; imposing duties on the Pennsylvania State Police and sheriffs; and imposing penalties. | Immediately | Introduced | |
| Pennsylvania's Clean Air Preservation Act creates a sweeping felony prohibition on atmospheric interventions, including solar geoengineering experiments like stratospheric aerosol injection and marine cloud brightening, with the unique feature of listing artificial intelligence as a criminal entity subject to minimum penalties of $500,000 and two years imprisonment per day of violation, enforceable by sheriffs and State Police against any entit,y including federal agencies. |
Last update Fri 21 Mar 2025 |
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| Status: Agriculture & Rural Affairs (since 21 Mar 2025) | ||||
| HB1167 | Prohibiting solar radiation modification or sunlight reflection methods, cloud seeding and polluting atmospheric interventions within this Commonwealth; imposing duties on the Pennsylvania State Police and sheriffs; and imposing penalties. | Immediately | Introduced | |
| Pennsylvania's Clean Air Preservation Act creates a sweeping felony prohibition on atmospheric interventions, including solar geoengineering experiments like stratospheric aerosol injection and marine cloud brightening, with the unique feature of listing artificial intelligence as a criminal entity subject to minimum penalties of $500,000 and two years imprisonment per day of violation, enforceable by sheriffs and State Police against any entity including federal agencies. |
Last update Mon 7 Apr 2025 |
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| Status: Environmental & Natural Resource Protection (since 7 Apr 2025) | ||||
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Rhode Island (2026 Regular Session)
Session Adjourn Tue 30 Jun 2026
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| S2220 | Establishes the Rhode Island Clean Air Preservation Act that establishes a regulatory process to prohibit polluting atmospheric experimentation. | Immediately | Introduced | |
| Rhode Island's Senate version of the "Clean Air Preservation Act" pairs its geoengineering ban with a $500,000-per-violation penalty floor, mandatory citizen deputization by state police, and -- reaching well beyond atmospheric modification -- imposes specific RF signal strength limits on all wireless telecommunications infrastructure and requires statewide fiber-optic deployment to homes, schools, and businesses, effectively bundling telecommunications regulation into an atmospheric pollution bill. |
Last update Fri 23 Jan 2026 |
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| Status: Senate Environment and Agriculture (since 23 Jan 2026) | ||||
| H7422 | Creates "the Rhode Island clean air preservation act." | 1 Aug 2026 | Introduced | |
| Rhode Island's "Clean Air Preservation Act" builds a muscular enforcement regime around its geoengineering ban -- authorising Air National Guard aircraft interdiction, mandating dual citizen reporting portals from two separate agencies, and classifying violations as felonies with per-day stacking penalties -- while also venturing into unusual territory by listing artificial intelligence as a prosecutable "entity" and defining pollutants broadly enough to encompass electromagnetic pulses, smart dust, and sound waves. |
Last update Thu 26 Feb 2026 |
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| Status: House Environment and Natural Resources Committee - Held for further studies | ||||
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US Congress (2025-2026 Regular Session)
Session Adjourn Thu 31 Dec 2026
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| HB4403 | Clear Skies Act | Introduced | ||
| The federal "Clear Skies Act" (H.R. 4403) bans all weather modification activities nationwide with criminal penalties up to 5 years imprisonment and $100,000 fines per violation, while repealing all existing federal authorities that permit such activities and establishing a public EPA reporting system for suspected violations. |
Last update Tue 15 Jul 2025 |
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| HB6941 | Atmosphere Study Act | Introduced | ||
| A federal study-only bill requiring the Department of Energy to investigate health and environmental effects of federally-connected geoengineering projects, with no regulatory teeth or prohibition provisions—essentially a fact-finding exercise that commits Congress to nothing beyond receiving a report. |
Last update Tue 6 Jan 2026 |
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| HB7452 | Air Quality Act | Introduced | ||
| This federal bill goes beyond simple prohibition by creating dual reporting systems—one requiring airlines to disclose weather modification equipment on aircraft, another for public violation reports—while simultaneously repealing all existing federal weather modification authorities and banning even federally-funded research on atmospheric intervention. |
Last update Mon 9 Feb 2026 |
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