Transportation: traffic signal synchronization pilot program: Western Riverside Council of Governments.

Header changed from the enrolled bill format (with blank dates for passage and gubernatorial approval) to the chaptered format with 'STATE OF CALIFORNIA AUTHENTICATED ELECTRONIC LEGAL MATERIAL' and Chapter 140 designation.

The legislative counsel's digest was repositioned from before the operative text to after the gubernatorial approval line, consistent with standard chaptered bill formatting.

The blank approval line ('Approved ___, 2026') was replaced with the completed date: 'Approved by Governor August 27, 2026. Filed with Secretary of State August 27, 2026.'

Page headers changed from 'AB 2307' style to 'Ch. 140' style throughout the document.

Removed the provision (former subdivision (g)) that would have allowed Caltrans to expand the pilot program to other local agencies beyond the Western Riverside region if the evaluation showed measurable transportation and operational benefits. This eliminates any built-in pathway for statewide expansion.

Clarified that the Western Riverside Council of Governments (not Caltrans) is the entity that establishes, administers, evaluates, and reports on the pilot program. The amended version had contradictory language assigning duties to both entities; the enrolled version resolves this in favor of WRCOG as the lead.

Changed Caltrans role from 'retain oversight authority over' the pilot program to simply 'participate in' the pilot program, including review of work plans, data standards, and evaluation methodologies. This reduces Caltrans from a supervisory position to a collaborative one.

Removed the word 'voluntary' from multiple coordination provisions (subdivisions (b) and (c)), making coordination with member local agencies and WRCOG mandatory rather than optional within the pilot program framework.

Changed the report requirement language from 'feasibility of statewide application of the traffic signal synchronization model' to 'applicability of the pilot program statewide,' a slightly narrower framing for the January 1, 2028 legislative report.

Caltrans no longer establishes and administers the pilot program. Instead, Caltrans authorizes WRCOG to establish and administer it in coordination with Caltrans. This transfers day-to-day program leadership from the state agency to the regional council of governments.

A new Section 1 adds four legislative findings and declarations: (a) efficient highway/street operation supports housing and economic activity; (b) congestion and idling harm air quality and greenhouse gas emissions; (c) highway expansion is constrained by fiscal, environmental, and community considerations making optimization of existing infrastructure necessary; (d) coordinated signal timing improves flow, reduces delay, enhances safety, and increases infrastructure effectiveness.

Caltrans' role changes from retaining 'oversight authority over the pilot program, including approval of work plans, data standards, and evaluation methodologies' to participating in the pilot program 'including review of work plans, data standards, and evaluation methodologies.' Caltrans shifts from an approver to a reviewer/participant.

The report to the Legislature due by January 1, 2028 is now submitted by WRCOG rather than Caltrans. The standard changes from 'in accordance with' Section 9795 of the Government Code to 'consistent with' that section, a slightly less binding formulation.

A new subdivision (g) defines 'member local agencies' as the local agencies constituting WRCOG, clarifying terminology used throughout the section.

Section numbering is reorganized: the legislative findings become Section 1, the operative Streets and Highways Code addition becomes Section 2, and the special statute finding moves from Section 2 to Section 3. References to 'local agencies constituting WRCOG' are replaced with 'its member local agencies' in several places.