HB 664 · 2025 · House · Health, Human Services and Elderly Affairs Committee
Vaccine mandates require placebo trials
AI-generatedrelative to childhood immunization requirements.
Provides that state childhood immunization requirements cannot mandate a vaccine that has not been tested against an inert placebo in clinical trials.AI-generated
Status
Killed in the House — Inexpedient to Legislate · March 26, 2025- ✓Introduced
- ✕House
- Senate
- Governor
- Law
Analysis
This bill provides that childhood immunization requirements shall not require a vaccine that has not been tested with an inert placebo in clinical trials.
From the bill's official ANALYSIS section.
In the bill's words
Quoted verbatim from the bill as introduced. Passages chosen from the operative text.Computed by this site
“Nothing in this section shall require a vaccine that has not been tested with an inert placebo in a clinical trial.”
Official record
gc.nh.gov · the authoritative source
Sponsors
Public testimony
1,120 signed in online · 314 wrote testimony
23% support77% oppose0% neutral
ForNo currently mandated vaccine has been placebo-tested
AgainstVaccines protect public health; weakening requirements risks outbreaks
AI-generatedLeading arguments, summarized by the testimony tool.
Read the argumentsIn their wordsVerbatim, exactly as submitted
“I am un full support that only thoroughly tested medical interventions should be recommended, let alone required on any human.…”
“Our children deserve quality safety testing on mandated vaccines.”
“It is unconscionable to allow/mandate ANY vaccine that has not been EXTENSIVELY tested as they used to be. The Covid vaccine was and still is a disaster!”
“We need safe and accessible vaccines so parents have the right to choose.”
“I am writing to express my strong opposition to HB664, which would prohibit childhood immunization requirements for vaccines that have not been tested with an inert placebo in clinical trials.…”
“Stop trying to take away vaccines. You’re putting children at risk of getting sick or possibly dying.”
Verbatim excerpts of submitted testimony, quoted from the testimony tool.
Read the testimony · as of Aug 12, 2026
Votes
yeanay- Mar 19, 2025HouseCommittee report· consent calendar: Inexpedient to Legislate18–0Overall100% yea
- Mar 26, 2025HouseVoice voteInexpedient to Legislateadopted
Hearings and debates
- Mar 12, 2025Public hearingHouse Health, Human Services and Elderly Affairs4:12:43–4:16:133m 30slocated in the stream transcriptPublic Hearing
- Mar 19, 2025Public hearingHouse Health, Human Services and Elderly AffairsWatchnot located in the transcript — opens the full streamCommittee Report: Inexpedient to Legislate; Executive Session
- Mar 26, 2025Floor debateHouse floorWatchnot located in the transcript — opens the full streamInexpedient to Legislate — adopted, voice vote
Timestamps locate where this bill is taken up in the chamber's YouTube stream.
Legislative history
- Jan 9, 2025HouseIntroduced (in recess of) 01/09/2025 and referred to Health, Human Services and Elderly Affairs HJ 3 P. 21
- Mar 12, 2025HousePublic Hearing: 03/12/2025 01:00 pm LOB 202-204
- Mar 19, 2025HouseExecutive Session: 03/19/2025 09:30 am LOB 201
- Mar 19, 2025House: Inexpedient to Legislate 03/19/2025 (Vote 18-0; CC) HC 17 P. 19
- Mar 26, 2025HouseInexpedient to Legislate: MA VV 03/26/2025 HJ 10 P. 32
Coverage
No reporting linked yet.
Background reading
Evergreen reading on the policy area — spanning perspectives — not coverage of this specific bill.
KFF — Who sets school vaccine rules, what every state requires, and how exemptions differ.AI-generated
KFF — The recent wave of state changes, with exemption rates at record highs.AI-generated
CDC Public Health Law Program — The federal compilation of state requirements and exemption categories.AI-generated
History of Vaccines (College of Physicians of Philadelphia) — How the childhood schedule is set, and by whom.AI-generated
Documents (PDF)
Bill text & amendments link direct to gc.nh.gov; committee reports stream from the state record.