Newsom signs AB 14, expanding California blue whale protection and locking in statewide ship emissions reduction program
Governor Gavin Newsom signed AB 14 on Oct. 11, 2025, creating the California Protecting Blue Whales and Blue Skies Program to expand a voluntary vessel speed reduction initiative statewide, protecting endangered blue whales while cutting ship greenhouse gas and air pollution.
Key takeaways
- AB 14 (signed Oct. 11, 2025) establishes the California Protecting Blue Whales and Blue Skies Program, expanding a local vessel speed reduction pilot into a coastwide, incentive-driven program. Read coverage from OurAir.org, Edhat, and KSBY.
- Mechanism: Voluntary slowdowns to 10 knots or less for vessels ≥300 gross tons in designated lanes, supported by incentives and recognition and managed by regional air districts (TrackBill, FastDemocracy).
- Evidence: Local pilots show ~50% fewer whale strikes in covered zones and substantial reductions in GHGs, NOx and diesel particulate matter — underpinning the statewide push (OurAir.org, Independent).
- Oversight & questions: Air pollution control districts will oversee incentives and reporting, but funding, auditing and long-term compliance details remain to be clarified (LegiScan).
Main content
Key information
Bill: Assembly Bill 14 (AB 14), signed Oct. 11, 2025, creates the California Protecting Blue Whales and Blue Skies Program. Coverage and official summaries are available from OurAir.org, Edhat, and KSBY.
Author and coauthors: Authored by Assemblymember Gregg Hart (D‑Santa Barbara); coauthored by Assemblymembers Steve Bennett (D‑Ventura) and Damon Connolly (D‑San Rafael). Details at the Assemblymember Hart page: a37.asmdc.org/2025-legislation and legislative reporting at OurAir.org.
How the program works
AB 14 formally authorizes and scales a voluntary vessel speed reduction program that began locally in Santa Barbara and Ventura counties in 2014 and expanded to the Bay Area in 2017. The law targets oceangoing vessels of 300 gross tons or larger, offering recognition and financial incentives to companies that slow to 10 knots or less in specified zones.
Regional air pollution control districts will manage incentives, verify compliance and report results, while the state provides a unified framework for coastwide implementation. For bill text and program language, see LegiScan and bill tracking at TrackBill.
Environmental and health impact — the evidence so far
Local pilots provided the data lawmakers cited: areas with voluntary speed reductions reported roughly a 50% decline in whale strikes within covered zones, a critical metric given past deadly collisions in the Santa Barbara Channel. Reporting on these results appears at OurAir.org and KSBY.
Air-quality and climate estimates tied to reduced ship speeds include avoided emissions of more than 200,000 metric tons of greenhouse gases, reductions of roughly 5,900 tons of NOx, and prevention of about 35 tons of toxic diesel particulate matter, with attendant local public-health benefits. These numbers are reported by program organizers and summarized in regional coverage (OurAir.org, Edhat, KSBY).
Noise pollution also declines with slower traffic; one report cites about a 38% reduction in underwater noise associated with reduced speeds, supporting the program’s wildlife-protection case (Independent).
Participation and compliance
Pilots showed strong industry participation, with overall compliance near 85% among targeted fleets in designated zones. That level of buy-in followed sustained outreach and incentive programs — an approach AB 14 intends to replicate statewide via regional air districts. See reporting at Independent and OurAir.org.
Legislative path, partners and politics
AB 14 moved through years of negotiation and local advocacy. It drew support from environmental coalitions, air quality agencies and scientific organizations and was celebrated at a signing event on Santa Barbara’s Stearns Wharf attended by local leaders, scientists and advocates. Local reporting and the signing event are covered by OurAir.org, KSBY, and Independent.
Assemblymember Hart sent six environment and public-health bills to the governor’s desk in 2025, illustrating a legislative focus on coastal protection and climate action. Supporters emphasize the bill’s blend of conservation and public health; industry stakeholders participated in negotiations to shape workable rules (a37.asmdc.org).
Voices from the field
“It’s time to expand this successful program state-wide,” urged Linda Krop of the Environmental Defense Center, calling for broader protections and coordination across the coast.
“The initiative delivers real benefits for both public health and marine life—protecting blue whales and blue skies alike,” said Aeron Arlin Genet of the Santa Barbara County Air Pollution Control District.
Supporters emphasize that AB 14 rewards good behavior rather than imposing fines, creating a positive compliance pathway. Industry groups were involved in negotiations, though questions about long-term enforcement, funding and auditing of incentives remain (OurAir.org, Edhat).
Historical context
The vessel speed reduction movement grew from a string of deadly collisions in the Santa Barbara Channel, including the loss of five blue whales in 2007. That area supports some of the world’s largest seasonal blue whale aggregations and inspired local conservation efforts that seeded the statewide policy (OurAir.org, KSBY).
Questions that remain
AB 14 relies on voluntary compliance backed by incentives and recognition rather than mandatory speed limits. Key open questions include:
- Monitoring & auditing: How will air districts track compliance, audit reported slowdowns and verify emissions reductions? (See LegiScan.)
- Funding: How will incentive programs be financed and administered over the long term?
- Market forces: Shipping patterns, technology shifts and trade pressures could change participation and outcomes.
Implications for San Diego
Economic: San Diego ports and maritime businesses may see slightly longer transit times for some ships, but incentives and industry collaboration aim to limit disruption. Local operators may qualify for recognition that enhances environmental branding (TrackBill).
Political: San Diego officials and port authorities will balance environmental gains with economic interests; AB 14 could surface as an issue in local races given the city’s maritime ties (a37.asmdc.org).
Social & health: Reduced ship emissions—lower NOx and particulate matter—could improve respiratory health in neighborhoods near the Port of San Diego and shipping corridors, benefiting communities historically impacted by port pollution (OurAir.org).
Cultural & practical: Whale-watching and coastal tourism may benefit from healthier marine populations, while port operators, pilots and shipping companies should prepare to coordinate with county air pollution control programs on monitoring and enrollment (LegiScan, TrackBill).
Statewide model, local action
AB 14 turns a local success story into a statewide policy pairing marine conservation with emissions reductions. Its effectiveness will hinge on robust monitoring, clear funding for incentives, transparent auditing and sustained industry cooperation — all critical to achieving the program’s triple goal of protecting whales, improving air quality and reducing climate pollution across California’s coast (OurAir.org, KSBY, Independent).
Multimedia and additional resources
Signing event footage and related videos include coverage of the Santa Barbara signing: Stearns Wharf signing video.
