HB 1128 New Hampshire House · 2026 Regular Session

restricting the use of weather modification technologies to declared emergencies.

HB 1128 restricts weather modification activities like cloud seeding to only situations where the governor declares a state of emergency for a catastrophic drought. This requires the drought to pose significant risks to water supply, agriculture, public health, or economic stability, with the declaration published publicly per state law. Before any weather modification occurs, the state must complete a 14-day environmental review and provide public notice in at least four newspapers and online, disclosing the chemicals used, potential health/wildlife impacts, and funding sources. The bill ensures such activities are limited to extreme emergencies with transparency and environmental safeguards.
Bill status passed 3 of 5 stages cleared
Introduction
Dec 2025
Committee Review
May 2026
House Passage
Feb 2026
Senate Passage
Governor
Introduced Dec 1, 2025 Last action May 14, 2026
Maddy AI version diff · 1 comparison

What changed between versions

Introduced As Amended by the House · 5 edits
MODERATE
The amended version significantly simplifies the trigger for cloud seeding, replacing a governor's emergency declaration with an objective drought threshold (90 days of extreme or exceptional drought per the U.S. Drought Monitor). It shifts responsibility for environmental review from the state to the entity conducting the activity, removes explicit state oversight language, and adds a new annual reporting requirement to the legislature.
ELIGIBILITY

The trigger for cloud seeding changed from requiring a governor's declared state of emergency for catastrophic drought (with specific criteria about risk to water supply, agriculture, public health, or economic stability) to simply requiring the state be in extreme or exceptional drought as categorized by the U.S. Drought Monitor for at least 90 days.

REQUIREMENT

The environmental review is no longer a fixed 14-day process conducted by the state. Instead, the entity seeking to conduct cloud seeding must perform the review and submit it to DES, which gains the power to reject the activity if it determines harm would result.

A new Section IV requires DES to submit an annual report by April 1 to the governor, speaker of the house, and senate president detailing any cloud seeding activities from the prior calendar year (no report needed if none occurred).

ENFORCEMENT

The original language requiring DES to 'maintain oversight of all cloud seeding activities to ensure compliance with regulations and assess effectiveness' was removed entirely.

SCOPE

The public notice requirement's trigger changed from activities 'brought forth by the governor upon recommendation of DES or other agencies' to simply 'any cloud seeding activities,' broadening when notice is required.

Floor votes

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Full legislative history

Actions timeline

Total actions
11
Key actions
4
Committee
4
Amendments
1
May 14, 2026
Upper · Passed
Pending Motion Committee Amendment # 2026-1839s; 05/14/2026; SJ 12
upper
May 5, 2026
Upper · Passed
Committee Report: Ought to Pass with Amendment # 2026-1839s, 05/14/2026, Vote 4-1; SC 18
upper
Feb 9, 2026
Introduced
Introduced 02/05/2026 and Referred to Energy and Natural Resources; SJ 4
upper
Feb 5, 2026
Lower · Passed
Ought to Pass with Amendment 2026-0266h: MA VV 02/05/2026 HJ 3 P. 19
lower
Feb 5, 2026
Introduced
Amendment # 2026-0266h: AA VV 02/05/2026 HJ 3 P. 19
lower
Jan 29, 2026
Lower · Passed
Committee Report: Ought to Pass with Amendment # 2026-0266h 01/27/2026 (Vote 15-1; CC) HC 5 P. 16
lower
Dec 1, 2025
Introduced
Introduced 01/07/2026 and referred to Science, Technology and Energy HJ 1 P. 7
lower
1 primary · 8 co-sponsors

Sponsors