California Governor Signs New Regional Planning Law
The legislation updates climate targets and transportation funding requirements across California.
Updated on Oct. 15, 2026 in Electric Vehicles
Live Poll
Should states tie local transportation funding to compliance with regional climate goals in your area?
Governor Gavin Newsom signed Senate Bill 1087 into law in September 2026 to align state transportation investments with climate goals. The law extends greenhouse gas reduction targets through 2045.
Why it matters
The legislation reduces administrative burdens for regional planning agencies and ensures state-funded highway projects better match local housing and climate initiatives.
The new law mandates that regional planning agencies update their plans every 8 years, doubled from the previous 4-year cycle. These revised targets now extend through 2045 to reach state climate goals.
The players
Gavin Newsom
Gavin Newsom is the Governor of California who signed the legislation into law.
Caltrans
Caltrans is the state department responsible for the design, construction, maintenance, and operation of the California state highway system.
Orange County Business Council
The Orange County Business Council is a regional business advocacy group that opposed the legislation due to concerns about regulatory oversight.
The details
The law requires Caltrans to measure highway projects against regional climate goals and mandates progress reports midway through the new eight-year planning cycles. Underperforming regions seeking state funding must now meet additional emission-reduction requirements to qualify.
Timeline
2008 marked the original passage of the Sustainable Communities and Climate Protection Act.
September 2026 is when Governor Gavin Newsom signed Senate Bill 1087 into law.
2045 serves as the end date for the extended greenhouse gas reduction targets.
Roadmap
This legislation updates the Sustainable Communities and Climate Protection Act of 2008 to address modern infrastructure and climate demands. By linking state funding to specific climate metrics, California is shifting its automotive landscape toward projects that reduce long-term highway dependency.
Drivers may see a shift in the types of highway projects prioritized for state funding in their local regions. Over time, these planning updates are intended to produce a transportation network that better supports state-wide emission targets.
The takeaway
The law provides a framework for regional agencies to streamline administrative tasks while focusing on long-term climate targets. Residents and planners should anticipate a shift toward projects that prioritize regional climate integration over traditional highway expansions.
Further reading
Learn more about the state's transition to sustainable transit by visiting California Electric Vehicles.
Source note: This article includes information reported by Streetsblog California.
Live Poll
Should states tie local transportation funding to compliance with regional climate goals in your area?
