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SB 1677

SB 1677 - This act modifies provisions relating to child passengers on motorcycles and motortricycles. SAFETY REQUIREMENTS AND PENALTY PROVISIONS (Sections 302.020.2 to 302.020.3) No person shall be stopped, inspected, or detained solely to determine that the protective headgear worn by an operator or passenger of a motorcycle or motortricycle meets reasonable standards and specifications, unless there is a reasonable basis to suspect that a violation of this act involves a child passenger under ten years of age. The penalty for failure to wear protective headgear as required by this act is an infraction for which a fine not to exceed twenty-five dollars may be imposed unless the violation involves a child passenger under ten years of age, in which case the violation shall be punishable as an infraction for which a fine not to exceed one hundred dollars may be imposed. CALVIN'S LAW (Section 302.023) This act establishes "Calvin's Law". It shall be unlawful for the operator of a motorcycle or motortricycle to allow any person under ten years of age to ride as a passenger on a motorcycle or motortricycle on any highway in this state unless the motorcycle or motortricycle is equipped with a proper passenger seat and the child is able to place both feet on the passenger foot pegs, except when a licensed physician certifies a medical exemption. Any passenger under ten years of age shall wear protective headgear that meets the safety standards and specifications established by the director of revenue. This act shall be effective on January 1, 2027. This act is identical to HCS/HBs 2553, 1831, & 2328 (2026), HB 2328 (2026), and HB 3085 (2026), HB 1831 (2026). TAYLOR MIDDLETON

2026 Regular Session

Bans under-10 motorcycle riders without a proper seat, foot pegs, and protective headgear, with fines up to $100 and physician exemptions.

Second Read and Referred S Transportation, Infrastructure and Public Safety Committee
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Bill Summary · SB 1677

Summary of Bill SB 1677 (2026) – Missouri

Purpose and intent

SB 1677 establishes safety requirements for child passengers on motorcycles and motortricycles, introduces a Missouri-specific rule package called “Calvin’s Law,” and sets penalties for violations. The bill aims to protect young children (under 10) by ensuring proper seating, headgear, and medical exemptions where applicable. It becomes effective January 1, 2027.

Key provisions

1) Safety requirements and penalties (Sections 302.020.2 – 302.020.3)

  • prohibitions on stops for compliance checks:
    • Generally, law enforcement cannot stop, inspect, or detain someone solely to verify headgear compliance on motorcycles or motortricycles unless there is a reasonable basis to suspect a violation involving a child passenger under age 10.
  • headgear enforcement and penalties:
    • For violations of protective headgear generally: an infraction with a fine up to $25.
    • If the violation involves a child passenger under age 10: an infraction with a fine up to $100.

Note: These provisions apply to operators and passengers; the headgear standards must meet reasonable standards and specifications established by the Director of Revenue.

2) Calvin’s Law (Section 302.023)

  • Prohibition on under-10 passengers:
    • It is unlawful for a motorcycle/motortricycle operator to allow a passenger under 10 on any highway unless:
    • the vehicle has a proper passenger seat, and
    • the child can place both feet on passenger foot pegs, or a medical exemption is certified by a licensed physician.
  • Headgear for under-10 passengers:
    • All passengers under 10 must wear protective headgear meeting the standards in Section 302.020.
  • Enforcement authority:
    • A person may be stopped, inspected, or detained solely to determine compliance with Calvin’s Law.
  • Penalties:
    • Violations of the under-10 passenger requirement or headgear requirement are infractions with fines up to $100.

Affected parties and scope

  • Operators and passengers on motorcycles and motortricycles operating on Missouri highways.
  • Individuals under 10 years old (primary protected group).
  • Law enforcement and the Missouri Department of Revenue (headgear standards and licensing provisions are tied to state standards).
  • Political subdivisions cannot impose their own protective headgear requirements on motorcycle/motortricycle operators or passengers.

Effective date and legislative context

  • Effective date: January 1, 2027.
  • The bill is identical to HB 2328 (2026) and repeals and reenacts sections 302.020 and 302.023 with the new provisions.
  • Procedural note: The bill was referred to the Senate Transportation, Infrastructure and Public Safety Committee after second reading.

Practical impact

  • Strengthened protections for children under 10 by requiring a proper passenger seat, foot pegs, and headgear, with physician-certified medical exemptions available.
  • Creates clear penalties that escalate for violations involving young children, while limiting police stops for general headgear compliance (except where a child is involved or other reasonable suspicion exists).
  • Provides consistency in headgear standards via state-wide directives (Director of Revenue standards) and preempts local headgear mandates.

If you’d like, I can compare SB 1677 to existing Missouri statutes or provide a quick Q&A briefing for policymakers or the public.

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

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