1 bill passed
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.
Passed by the House, recommended by the Senate committee, but laid on table by full Senate
New Hampshire's HB1618 creates an aggressive enforcement regime against atmospheric interventions involving pollutants, establishing a citizen deputy system where county sheriffs must deputise volunteers to help enforce felony prohibitions carrying minimum $500,000 fines, while simultaneously empowering the Air National Guard to interdict aircraft and imposing strict electromagnetic radiation limits on communications facilities—making artificial intelligence entities themselves subject to criminal prosecution.
New Hampshire's House urges the prohibition of atmospheric geoengineering through a formal resolution requiring the state environmental agency to notify 27 federal entities of the policy. However, the measure creates no enforceable penalties or regulatory framework—representing legislative intent rather than binding law.
Motion Adopted Regular Calendar 169-152 03/05/2026 House Journal 6
This geoengineering prohibition bill received an overwhelming 17-1 negative committee recommendation but was rescued by the full House through a procedural table motion, leaving it in legislative limbo. The bill's Tenth Amendment rationale and requirement that New Hampshire formally notify 25 federal agencies - including nuclear regulators - of its new atmospheric restrictions reflects an assertive states' rights posture rarely seen in environmental legislation.
Session adjourned 30th June 2025, currently laid on the table in House.
This predecessor to HB 764 combined geoengineering prohibition with electromagnetic radiation limits and a mandatory citizen reporting system deputizing the public as atmospheric monitors. The bill was decisively rejected 315-58 on the House floor after a 16-3 negative committee vote, representing one of the most lopsided defeats for geoengineering legislation in any state.
House voted Inexpedient to Legislate; the bill died.
This bipartisan transparency bill sailed through the legislature with near-unanimous support (18-0 in the House committee, 5-0 in the Senate committee). It was signed into law by Governor Sununu, establishing public notification requirements for state weather modification programs. Notably, the statute this bill amended (RSA 12-F) is the same statute that HB 764 (2025) proposes to repeal entirely and replace with a prohibition on geoengineering.
Bill passed, became Chapter 34, effective July 16, 2021.
This two-sentence bill - the earliest in New Hampshire's weather modification legislative saga - proposed simply repealing the state's weather modification statute without explanation or replacement. Despite bipartisan Senate sponsorship, including five Senators, it was unanimously killed in committee, setting the stage for a pivot to the transparency-based approach that would succeed the following year with HB 128.
Senate voted Inexpedient to Legislate; the bill died.
This two-sentence repeal bill from 2013 represents the earliest known attempt in the New Hampshire legislature to eliminate the state's weather modification statute. Despite generating enough interest for a recessed public hearing, it was killed 12-7 in committee - a closer vote than the unanimous rejection that later repeal attempts would receive.
House voted Inexpedient to Legislate; the bill died.