State Legislatures Introduce Numerous Bills Targeting Vaccination Rules

This year, statehouses were inundated with over 200 bills in 34 states aimed at weakening vaccination rules or questioning vaccine safety. These bills challenged every aspect of the public vaccination system, affecting everything from educational and employment requirements to patient information dissemination.

In specific examples, a Wisconsin proposal sought to declare October as “Immunization Injury Awareness Month,” while an Iowa bill aimed to eliminate vaccination requirements for schools. Overall, lawmakers introduced at least 400 vaccine-related bills. Among them, 209 bills proposed changes that could undermine trust in vaccines, according to an analysis by The New York Times.

Although only a small number became law, proponents of the legislative efforts plan to continue pushing forward with more proposals. Jack McClure from the Association for Immunization Managers noted a shift, stating that bills which previously stalled in committees are now advancing through legislative chambers, indicating increased seriousness from lawmakers.

• Weakening Rules: Many bills sought to dismantle long-standing immunization regulations, though none passed to law. States like Arizona and New Hampshire came closest to enacting such measures.
• Protections for Unvaccinated: Some proposed bills offered legal protections for those refusing vaccines, such as a “bill of rights” for the unvaccinated.
• Vaccine Safety Claims: Bills echoed unfounded claims about vaccines, including a requirement for autopsy reports to list vaccines received before a child’s death. This connects to the debunked idea that vaccines cause infant death, despite scientific evidence to the contrary.
• Targeting mRNA Vaccines: Proposals included labeling mRNA-derived products and banning COVID vaccinations, spreading misinformation according to medical experts.
• Altering Systems: Bills suggested additional authorization steps for vaccinations, such as requiring parental consent or altering how costs are covered, potentially complicating public vaccination efforts.

Despite the majority of these bills not becoming law, support often split along partisan lines, with Republican support predominant. In states like Arizona, Republican-led chambers passed proposals, though they faced vetoes from Democratic governors.

The advocacy efforts will likely continue, aiming to introduce more bills in future sessions. Some supporters, like Del Bigtree of the Informed Consent Action Network, argue the movement is gaining traction in several state legislatures. The data for this analysis was gathered by reviewing over 400 bills tracked by various organizations, examined from August 2025 to July 2026.