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Bill Summary · SB 474

Legislative bill overview

SB 474 would have required Montana to accept religious and personal belief exemptions to immunization requirements, presumably for school attendance and potentially other settings. The bill died in the legislative process in May 2025 after being tabled in the House Appropriations Committee in April.

Why is this important

Immunization requirements affect public health infrastructure, disease transmission rates, and individual access to schools and services. Exemption policies directly influence vaccination coverage rates, which determine whether communities maintain herd immunity thresholds needed to prevent outbreaks of preventable diseases like measles and whooping cough.

Potential points of contention

  • Public health vs. individual choice: Broader exemptions reduce vaccination rates, potentially weakening community immunity protection and increasing outbreak risk, particularly among vulnerable populations unable to be vaccinated
  • Scope of "personal" exemptions: The bill's language on "personal" exemptions is vague—defining what constitutes a valid personal belief versus medical necessity raises questions about enforceability and consistency
  • Existing exemptions: Montana already permits religious exemptions; this bill's addition of "personal" exemptions represents a significant expansion beyond current policy in most states

Compiled from official sources — confirm details with the bill’s official record.

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