The New Hampshire Senate on Thursday dispatched the most ambitious of the season’s anti-vaccine bills to interim study — a procedural maneuver that effectively kills it for the year — narrowing what had been a sweeping Republican push to dismantle the state’s school vaccination requirements down to a handful of survivors. As the New Hampshire Bulletin reported, the Senate’s vote on House Bill 1719, which would have eliminated the hepatitis B vaccination requirement for children entering school or childcare, capped a session in which most of the anti-mandate slate failed in either committee or on the floor.
For a House caucus that came into the biennium signaling a serious appetite to revisit New Hampshire’s childhood immunization framework, the result is a sharp reset. Six high-profile vaccine bills were filed; only two remain alive heading into late May, and both have been substantially watered down from their original form.
What HB 1719 Would Have Done — And Why It Failed
HB 1719, sponsored by Rep. Kelley Potenza, a Rochester Republican, would have struck the hepatitis B requirement out of New Hampshire’s list of mandatory vaccinations for school and childcare entry. The current list includes polio, tetanus, diphtheria, mumps, pertussis, rubella, rubeola, varicella, hepatitis B, and haemophilus influenzae type B, and a child must be up to date on each before enrolling.
By sending HB 1719 to interim study, the Senate did not technically kill it. In practice, however, interim study is where most New Hampshire bills go to die — assigned to a committee that may or may not produce a report by the start of the next session, with no scheduled floor action. For a controversial measure facing a thin margin in the chamber, interim study is the polite end.
Potenza had cast the requirement as government overreach. Her colleagues in the Senate — including, evidently, several Republicans — were not persuaded that hepatitis B, a vaccine recommended at birth and credited with sharply reducing pediatric infections nationally, was the right place to plant a flag against childhood immunization mandates.
The Bill That Set The Tone — And Lost Big
The most expansive vaccine legislation of the session was House Bill 1811, sponsored by Manchester Republican Rep. Matt Drew. As filed, HB 1811 would have ended every state vaccine mandate on the books, leaving only voluntary immunization in its place. Drew framed the case in libertarian terms when he introduced the bill in February.
“Mandates are a clear statement of inherent mistrust,” Drew told colleagues. “If your product is so bad that people won’t use it voluntarily, that’s a big flashing neon sign that it is probably unsafe, ineffective, or both.”
His House colleagues were not persuaded either. HB 1811 was defeated 155-192. Drew had attempted a compromise amendment that would have preserved only the polio requirement, but even that pared-back version could not muster a majority. The bill’s defeat in February was the first major signal that the chamber’s appetite for a wholesale rewrite of the state’s immunization regime did not match the rhetoric of its sponsors.
What’s Still Alive
Two vaccine bills are still in play, and both deal with religious exemptions rather than the underlying mandates.
House Bill 1022, also sponsored by Drew, would create a simplified, statutorily defined religious-exemption form. Today, the New Hampshire Department of Health and Human Services produces and controls the form a family must use to claim a religious exemption from school immunization rules — a process several Republican lawmakers have argued gives an executive-branch agency too much control over the contours of the exemption. HB 1022 would replace the agency form with a standard parental attestation, cleared the House 179-150 in March, and is now before the Senate Health and Human Services Committee.
House Bill 1584, sponsored by Potenza, took a more aggressive approach. As introduced, it would have eliminated any required form altogether and allowed parents to attest to a religious exemption “by any written statement.” It would also have required the Department of Health and Human Services to include — in bold, starred print at the top of every vaccine-related communication, advertisement, or webpage — the disclosure that medical and religious exemptions are available under New Hampshire law.
The House passed HB 1584 197-163 on what amounted to a party-line vote. The Senate Health and Human Services Committee then amended the bill to drop the no-form provision while keeping the disclosure requirement. The pared-down version is awaiting a floor vote in the Senate.
Two Bills That Were Always Going To Be Modest
Two other vaccine-adjacent bills passed the House but were narrowed in the Senate.
House Bill 1449, from Hampton Republican Rep. Linda McGrath, would have prohibited public and charter schools from hosting vaccine clinics during school hours. Clinics could still be held outside of school hours, but a parent or guardian would have to be present while a child was vaccinated. It passed the House 172-154 in March. The Senate kept the broad outline intact but added carve-outs for flu vaccine clinics and for clinics held during a declared public health emergency. The bill returns to the House for concurrence with the Senate amendments.
House Bill 1219, sponsored by Brentwood Republican Rep. Melissa Litchfield, targets a narrower question: extra vaccination requirements that the Department of Health and Human Services places on foster parents. Under current DHHS policy, foster parents must be up to date on pertussis vaccination if caring for an infant and on annual flu vaccination if caring for a child with significant medical needs. HB 1219 would scrap those policy-level extras, leaving foster parents subject to whatever immunization requirements apply to the general adult population. It passed the House 180-145 in March, and the Senate Health and Human Services Committee earlier this month recommended that the full Senate approve it.
The Governor’s Office Looms
Even the bills that survive the Senate face a meaningful question at the corner office. Gov. Kelly Ayotte vetoed substantially similar exemption legislation in 2025. In her veto message at the time, Ayotte wrote: “the State already has an established process by which parents can claim a religious exemption, and I see no reason to change it.”
That language is doing real work this session. With Ayotte on record about the existing process being adequate, sponsors have spent more energy this cycle trying to write bills she might sign than trying to maximize the substantive policy change. HB 1584’s amended form — focused on disclosure rather than scrapping the form — looks tailored to that calculation. Whether the calculation works is another matter.
The session’s overall pattern fits a familiar Granite State story. New Hampshire’s policy debates have grown more polarized around childcare, education, and the strain on the state’s K-12 schools, but the structural realities — a Senate where moderates can swing votes, and a governor unwilling to torch existing public-health infrastructure — have repeatedly funneled outsize ambitions back to incrementalism. The 2026 vaccine slate is the latest instance.
What To Watch In The Next Few Weeks
Three things will determine whether the session ends with policy change or just rhetoric. First: whether the full Senate passes the amended HB 1584 disclosure-only bill, and whether the House concurs with the Senate’s narrowing. Second: whether HB 1022’s simplified attestation form clears the Senate Health and Human Services Committee in the next few weeks. Third: whether the governor’s earlier veto language signals that she will sign a procedural change like HB 1022 or veto anything that touches the religious-exemption framework. These are the kinds of close-margin questions that can be decided by a single Senate Republican changing a vote.
For now, the headline is the contraction of the slate. A session that opened with credible momentum behind a serious challenge to school immunization mandates is closing with two narrow, procedurally focused exemption bills as the only realistic survivors. That outcome will frustrate the lawmakers who filed the most ambitious bills, but it leaves the structural framework of New Hampshire’s school immunization regime intact heading into the next biennium. For more on how Concord’s Republican majority has played the long game on health-related regulation, see our coverage of the Executive Council tabling $1.2 million in childcare program funds.
