Legis
Transportation
AB 1145, Chapter 511, Statutes of 2026 · Sunday 27 September 2026

Vehicles: local regulation: Department of Transportation

Caltrans must compare costs and explain rejections of local traffic rules proposed for state highways.

The law adds cost review and written accountability when local authorities seek state approval for traffic ordinances or resolutions affecting state highways.

What the law does ​

  • Requires the Department of Transportation to compare a proposed local rule’s costs with possible alternative solutions.
  • Requires the Department of Transportation to give the submitting local authority written reasons and justifications when it rejects a proposal.
  • Retains the requirement that local proposals receive Department of Transportation approval before taking effect on specified state highways outside the local authority’s exclusive jurisdiction.

Who it affects ​

  • Local authorities seeking approval for traffic regulations or vehicle restrictions on state highways.
  • The Department of Transportation.