Independent New Hampshire Journalism · Northfield, NH

SB 468 Lets New Hampshire’s Medical Cannabis Centers Ask to Grow in Greenhouses. The Health Department’s Rules Decide Where and How.

Lawmakers overrode Gov. Kelly Ayotte’s veto on Aug. 19, 2026, and the law took effect that day. It sets no deadline for the rules every request has to go through, and it hands the department the security and location questions Gov. Chris Sununu cited when he vetoed the same idea in 2024.

Since Aug. 19, 2026, each of New Hampshire’s registered alternative treatment centers, the nonprofits that grow and sell cannabis to patients in the state’s therapeutic program, has had a right under state law to ask the Department of Health and Human Services for permission to grow in a greenhouse. The law that gives them that right, Senate Bill 468, became Chapter 344 of the Laws of 2026 when the Senate voted 16-8 and the House 257-44 to override Gov. Kelly Ayotte’s veto.

The request runs through rules the department has to write. A center’s proposal must be submitted “pursuant to rules adopted under this section,” and the law gives the department no date to adopt them. The department’s program page, as read on Oct. 10, 2026, listed its registry rules as effective May 2023 and did not mention greenhouses.

What the law does

Chapter 344 has two sections. The first adds a new paragraph, XI, to RSA 126-X:7, the statute that registers alternative treatment centers. The second makes the act effective on passage. The docket records it as “Chapter 344; Effective 08/19/2026.” As read on Oct. 10, 2026, the General Court’s online copy of RSA 126-X:7 did not yet show the new paragraph; the quotations here are from the final text of the act.

The law adds nothing else. It does not change the definition of a cultivation location in RSA 126-X:1, which calls it “a locked and enclosed site,” and it does not change RSA 126-X:8, XV(c), which says “All cultivation of cannabis shall take place in an enclosed, locked facility registered with the department and which can only be accessed by alternative treatment center agents.” It does not change the possession and cultivation limits in RSA 126-X:8, XV(a). The existing rules the greenhouse would also fall under include security requirements that, under RSA 126-X:6, III(a)(3), cover “at a minimum, lighting, physical security, video security, alarm requirements, measures to prevent loitering, and on-site parking.”

The dates

One press account describes the Senate’s March vote differently from the docket. InDepthNH.org reported on March 26, 2026 that the bill “passed on a vote of 18-6.” The docket records the 6-18 count on the committee’s interim-study motion, which failed, and records passage on a voice vote. The Marijuana Herald (May 8, 2026) and Marijuana Moment (June 25, 2026) both reported voice votes, matching the docket. The docket is the official record and the stronger source.

Third version in three years

SB 468 is the third bill since 2024 to try to put therapeutic cannabis in greenhouses. The first two came from Rep. Suzanne Vail, a Democrat. Neither became law.

Sununu’s 2024 veto message objected to what the bill left out. “The legislation provides scant detail regarding safety, security, and location requirements,” he wrote, according to the New Hampshire Bulletin. “Those details are necessary to ensure appropriate controls on a regulated substance.” Vail answered after the override vote that any new facility “would go through the same process as the original dispensaries and their original cultivation locations, to get townspeople’s approval and to meet the rigorous security requirements that are already in place,” as Ganjapreneur reported on Oct. 11, 2024, citing Marijuana Moment. SB 468 does not write those details into the statute either. It orders the department to adopt rules “including rules regarding location and security,” and it adds the proposal and price-reporting requirements that the 2024 and 2025 bills did not have.

HB 1581 was also described more narrowly than its text. The Bulletin wrote that it “would have allowed the state’s alternative treatment centers to build greenhouses on their cultivation sites.” The bill text said “additional cultivation locations, which may be a greenhouse,” with no on-site limit.

The veto, and the votes to override it

Ayotte’s veto message, as quoted by InDepthNH.org and the New Hampshire Bulletin, said: “I do not support expanding the cultivation of marijuana in our state. For this reason, I have vetoed SB 468.” The two outlets’ quotations match word for word.

The override needed two-thirds of those present and voting in each chamber. The Senate’s 16-8 vote met that mark with no vote to spare, as the Boston Globe noted on Aug. 20, 2026; the House’s 257-44 cleared it by a wide margin. The counts are from the General Court docket.

What each side said

For the bill

Sen. Howard Pearl, R-Loudon, the prime sponsor, told the Boston Globe for a story published Feb. 20, 2026: “The number one complaint expressed by patients is affordability.” After the veto he told Marijuana Moment, which published his comments June 25, 2026: “I disagree with the governor’s decision to veto SB 468. This bipartisan bill would have provided a practical way to lower costs for patients with serious medical conditions while maintaining the rigorous oversight and safeguards that have made New Hampshire’s Therapeutic Cannabis Program successful.”

Sen. Tara Reardon, D-Concord, a cosponsor, made the cost argument before the Senate override vote, according to Marijuana Moment’s Aug. 19, 2026 report: “One obvious factor is that our our programs are allowed only to cultivate indoors with high intensity lighting, and this is by far the most expensive way to produce cannabis. At the same time, we know that cannabis businesses across New England states are free to cultivate using natural sunlight rather than expensive electric lights.” (The repeated word is in Marijuana Moment’s transcription.)

In the House, Rep. Wayne MacDonald, a Republican, pointed to the approval step. A center would have to submit “plans to reduce energy costs and provide lower prices for registered qualifying patients,” he said, according to the same report, and “If the proposal is approved, it will enable the center to better serve those who benefit from cannabis for therapeutic use.”

The Globe reported on Feb. 20, 2026 that in mid-February an eighth of an ounce of flower could cost a New Hampshire patient $33 to $39, while the same quantity started at $10 in Maine and Massachusetts, $18 in Rhode Island, and about $25 in Vermont and Connecticut. Matt Simon, director of public and government relations at Granite Leaf Cannabis, which operates two of the state’s seven dispensaries, told the Globe: “In recent years, we have been able to reduce prices significantly. We’ve not been able to keep up with the plummeting prices in Maine and Massachusetts.” After the override he told Marijuana Moment: “We are doing the best we can to provide quality products at affordable prices, and we know that being able to use sunlight will help.” Marijuana Moment discloses that Simon supports its work through a monthly Patreon pledge.

Against the bill

Ayotte’s stated reason was the veto message itself: she does “not support expanding the cultivation of marijuana in our state.” Her broader position, as she put it to reporters in 2025 and as the Globe quoted it: “My position has been, and continues to be, that we should not legalize marijuana in the future.” The Globe reported that she pointed to concerns about mental health and road safety; the Bulletin, in its veto story, cited her concern that police cannot measure a driver’s marijuana intoxication with current technology, along with youth mental health and “quality of life.” Those statements concerned recreational legalization, which SB 468 does not touch.

Sen. William Gannon, R-Sandown, opposed the bill in March, InDepthNH.org reported, and spoke against the override in August. Before the override vote, Marijuana Moment reported, he said “there’s no evidence to support the greenhouse growing of marijuana” and called the bill “vague with no guardrails.” He added: “There’s no really guarantee here that the money made is not to be turned to profit. We don’t know that they’re going to use it to lower the cost of the product.” In March, according to InDepthNH.org’s paraphrase, Gannon said he would not want to live in a neighborhood with that kind of smell and raised security and safety concerns for children.

The Senate Judiciary Committee’s majority recommended interim study, 3-1, before the full Senate rejected that course. The sources for this report do not give the committee’s written reasoning. Marijuana Moment reported that the only person to testify against the bill during the 2026 session was a former state lawmaker who chairs Smart Approaches to Marijuana NH; it did not name the person or summarize the testimony.

The program it changes

New Hampshire’s therapeutic cannabis law dates to 2013. RSA 126-X:1 defines an alternative treatment center as “a not-for-profit entity.” The department’s program page lists seven dispensary locations, in Chichester, Conway, Dover, Keene, Lebanon, Merrimack and Plymouth. The New Hampshire Bulletin, in a story republished by the Valley News on June 14, 2026, reported that they are operated by four nonprofit alternative treatment centers. SB 468 gives the authorization to the centers; a dispensary has no separate right to ask.

How many patients the change reaches depends on whose count is used. The department’s program page, which carries no date, says “We have more than 12,000 active patients.” Reardon put the number at “more than 17,000 veterans and patients” in comments to Marijuana Moment, and the Globe reported in February 2026 that “about 17,000 people have medical marijuana cards.” GSR reported “roughly 15,000” in an August 2026 article. The department is the program’s administrator and the stronger source, but its page does not say when its figure was counted, and none of the sources explain the gap.

Granite State Report’s Aug. 23, 2026 article on cannabis patients and gun purchases quoted Ayotte’s veto of this bill. The override came on Aug. 19, four days before that article ran, and SB 468 is law. GSR’s October 2025 opinion piece on the governor and adult-use cannabis covers the separate legalization fight.

How the press described it, and what the text says

The New Hampshire Bulletin’s veto story, as republished by the Valley News on June 14, 2026, said the bill “would allow medicinal marijuana dispensaries to have their own on-site greenhouse” and that “Each dispensary would be limited to one greenhouse.” The text reaches farther on location and says less on number. It allows a greenhouse “at the same or at a different location than its existing cultivation location,” and it gives the authorization to each alternative treatment center. It speaks of “a greenhouse cultivation location” in the singular but does not say in words that a center is limited to one.

What the text leaves open

• When. RSA 126-X:7, XI(a) says the department “shall adopt rules” but sets no date. A center’s “detailed proposal” must be submitted “pursuant to rules adopted under this section,” so the application step waits on the rules.
• “Locked and enclosed.” The chapter still defines a cultivation location as “a locked and enclosed site” and still requires cultivation in “an enclosed, locked facility.” How a structure built to let in sunlight meets those words is left to the department’s “rules regarding location and security.”
• How many. The text uses the singular, “a greenhouse cultivation location.” It does not say whether a center could seek a second.
• Lower prices. A center must submit a “plan” to reduce energy costs and lower prices, and must later report “the impacts” on costs and prices. The text sets no price target and names no consequence if prices do not fall. That is the gap Gannon pointed to.
• What the town gets. The department must “solicit input” from patients, caregivers and residents “in conjunction with the local governing body,” and the greenhouse must comply with local zoning. The text gives the town no separate approval or veto beyond its zoning law.
• Odor. Gannon raised smell. The text says nothing about it; any standard would come from the department’s rules or local ordinances.

— Granite State Report

Fact check

Editor’s note. The text of Chapter 344 is quoted from the final version of SB 468 as reprinted by the NH Liberty Alliance bill tracker; RSA 126-X:1, 126-X:6, 126-X:8 and 541-A:11 are quoted from the Revised Statutes Annotated as published by the General Court. Bill versions, docket entries and vote counts are drawn from the General Court docket as reprinted by the NH Liberty Alliance bill tracker, Citizens Count and PolicyRisk. Statements by lawmakers, the governor and the industry are drawn from the outlets named with each quotation. Marijuana Moment describes its own work as cannabis advocacy journalism, the Marijuana Policy Project is an advocacy group, and the Marijuana Herald and Ganjapreneur are cannabis-focused publications; their reports are used here for quotations and vote counts, and vote counts are checked against the docket. Granite State Report is a newsroom; nothing here is legal advice.

Corrections: Granite State Report corrects verified errors promptly and appends a dated note identifying what changed and when. The corrections policy and the corrections register are public, and correction notes are never removed.