relative to enabling alternative treatment centers to operate a greenhouse cultivation location.
SB 468 allows alternative treatment centers (ATCs) that provide medical cannabis to apply for permission to operate greenhouse cultivation facilities, which typically use less energy than indoor growing. ATCs must submit a detailed plan showing how greenhouse cultivation will lower energy costs and reduce prices for registered qualifying patients. The state department must create rules for greenhouse operations - including security, location, and compliance with local zoning - and seek input from patients, caregivers, and community residents before approving new sites. ATCs will also report annually on greenhouse impacts to energy costs and product prices as part of their required state filings.
Bill status
vetoed
4 of 5 stages cleared
Introduction
Nov 2025
Committee Review
May 2026
Senate Passage
Mar 2026
House Passage
May 2026
Vetoed
Aug 2026
Introduced Nov 21, 2025
Vetoed Aug 19, 2026
Maddy AI version diff · 2 comparisons
What changed between versions
Version adopted by both bodies
→
CHAPTERED FINAL VERSION
·
3 edits
MINOR
SB 468 was chaptered as Chapter 344 with no substantive policy changes. The section numbers were updated to reflect the chapter designation (344:1 and 344:2), a minor wording change replaced 'which' with 'that' in one clause, and a historical note was added recording that the governor vetoed the bill on June 12, 2026 and the veto was overridden on August 19, 2026.
TECHNICAL
Section numbers changed from generic '1' and '2' to chapter-specific '344:1' and '344:2' as part of the standard chaptering process.
In subsection (e), 'Any alternative treatment center which operates a greenhouse' was changed to 'Any alternative treatment center that operates a greenhouse' - a minor grammatical edit with no policy impact.
TIMELINE
A historical note was appended recording that the bill was vetoed by the governor on June 12, 2026, the veto was overridden on August 19, 2026, and the effective date is August 19, 2026.
Floor votes · House Aug 19, 2026
How they voted
151–19
Passed · 44 other
Total votes 214
Aug 19, 2026
D
Democratic101
80% Yea
I
Independent2
50% Yea
R
Republican111
62% Yea
Vote distribution
All Yea
All Nay
Mixed
No data
Full legislative history
Actions timeline
Total actions
18
Key actions
5
Committee
5
Aug 19, 2026
House · Passed
House Vote: pass (151-19-44)
house
Aug 19, 2026
Vetoed
Veto Overridden 08/19/2026: RC 257-44 by Required Two-Thirds Vote HJ 16
lower
Aug 19, 2026
Vetoed
Notwithstanding the Governor's Veto, Shall SB 468 Become Law: RC 16Y-8N, Veto Overridden by necessary two-thirds vote; 08/19/2026; SJ 15
upper
Jun 19, 2026
Vetoed
Vetoed by Governor 06/12/2026
upper
May 7, 2026
Lower · Passed
Ought to Pass: MA VV 05/07/2026 HJ 12 P. 11
lower
Apr 22, 2026
Lower · Passed
Committee Report: Ought to Pass 04/15/2026 (Vote 18-0; CC) HC 18 P. 8
lower
Mar 27, 2026
Introduced
Introduced (in recess of) 03/26/2026 and referred to Health, Human Services and Elderly Affairs HJ 9 P. 54
lower
Mar 26, 2026
Upper · Passed
Ought to Pass: MA, VV; OT3rdg; 03/26/2026; SJ 7
upper
Mar 26, 2026
Upper · Passed
Sen. Pearl Moved Ought to Pass; 03/26/2026; SJ 7
upper
Mar 18, 2026
Committee
Committee Report: Referred to Interim Study, 03/26/2026, Vote 3-1; SC 11
upper
Nov 21, 2025
Introduced
Introduced 01/07/2026 and Referred to Judiciary; SJ 2
upper
1 primary · 6 co-sponsors
Sponsors
Ask Maddy
·
AI policy assistant
Ask Maddy about SB 468
Scope: NH
Hi! I can help you understand SB 468. What would you like to know?
Try one of these
i
Maddy answers using official bill text and legislative records. Always verify before sharing.
Sources cited inline