New Hampshire · 2026 Regular Session · Bill
HB 1618: prohibiting solar radiation modification, weather modification, and other polluting atmospheric interventions.
Did not advance Official data
- Introduced
- In committee
- Passed one chamber
- Passed both chambers
- Enacted
- Did not advance
Last official action: ·Record last updated:
Plain-language summary
HB 1618 is a bill introduced in the New Hampshire House on December 10, 2025. According to its official title, it concerns: prohibiting solar radiation modification, weather modification, and other polluting atmospheric interventions. Primary sponsor: Melissa Litchfield (Republican). It lists 8 additional sponsors. Most recent recorded action (February 5, 2026): Inexpedient to Legislate: MA VV 02/05/2026 HJ 3 P. 20.
Generated automatically from the official title, sponsor list, and status record only. It does not characterize the bill’s purpose or effects. How summaries are written
Sponsors
Sponsors by party (alphabetical): Republican 9
| Name | Role | Party | Chamber | District |
|---|---|---|---|---|
| Melissa Litchfield | Primary sponsor | Republican | House | Rockingham 32 |
| Susan DeRoy | Co-sponsor | Republican | House | Strafford 3 |
| Sayra DeVito | Co-sponsor | Republican | House | Rockingham 8 |
| Matt Drew | Co-sponsor | Republican | House | Hillsborough 19 |
| Michael Granger | Co-sponsor | Republican | House | Strafford 2 |
| Rita Mattson | Co-sponsor | Republican | House | Cheshire 18 |
| Linda McGrath | Co-sponsor | Republican | House | Rockingham 40 |
| Peter Mehegan | Co-sponsor | Republican | House | Merrimack 12 |
| Sherri Reinfurt | Co-sponsor | Republican | House | Hillsborough 29 |
“Support” is shown only as formal sponsorship recorded by the legislature. Roll-call votes are available on the official bill page.
Recent official actions
- Inexpedient to Legislate: MA VV 02/05/2026 HJ 3 P. 20
- Committee Report: Inexpedient to Legislate 01/14/2026 (Vote 15-0; CC) HC 5 P. 16
- Executive Session: 01/14/2026 04:00 pm GP 229
- Public Hearing: 01/14/2026 04:00 pm GP 229
- Introduced 01/07/2026 and referred to Science, Technology and Energy HJ 1 P. 28