Autonomous Vehicles Protocol Changes
Section 38750 of the California Vehicle Code is reshaping the future of self-driving vehicles, ensuring they follow clear protocols rather than operating freely. It outlines the necessary procedures for testing, everyday use, and how AVs should act in emergencies, such as when first responders need to move one off the roadway. Manufacturers are now required to maintain a 24/7 emergency contact line, install communication devices for emergency responders, and allow law enforcement to override the vehicle's systems. If an AV violates traffic regulations or causes a problem, the company behind the vehicle will be notified, but they have the chance to challenge the penalty. Additionally, by 2030, all AVs must be zero-emission to remain compliant with California's standards. This legislation provides a structured framework to keep self-driving vehicles under control and accountable.
California has long been at the forefront of autonomous vehicle (AV) innovation, serving as a testing ground for companies like Waymo, Cruise, and Tesla. With its permissive regulatory environment, the state has issued permits to dozens of manufacturers for testing and deployment. However, recent incidents—such as collisions involving driverless vehicles—have prompted a wave of updates to protocols aimed at enhancing safety, accountability, and integration with human-driven traffic. As of early 2026, key changes include new laws on traffic violations for AVs, emergency response mechanisms, marker lamps, and expanded regulations for heavy-duty vehicles.
This article explores these developments in depth, drawing from legislative texts, Department of Motor Vehicles (DMV) proposals, and industry analyses. While not exhaustive (a true 300-page tome would require volumes), it provides a detailed examination of the protocols' evolution, implications, and future outlook. We'll cover background, specific changes, and broader impacts over the following sections.
California's AV framework dates back to 2012, when the DMV first adopted regulations allowing testing on public roads. The state uses a tiered permitting system:
By late 2025, 30 companies held drivered testing permits, six had driverless testing, and three had deployment permits. Regulations define AVs based on SAE Levels 3-5, where Level 3 requires human readiness, and Levels 4-5 enable full autonomy in specific domains.
Historically, heavy-duty AVs (over 10,001 pounds GVWR) were prohibited from driverless operations, a stance reinforced by Governor Newsom's 2023 veto of AB 316, which sought a permanent ban on driverless heavy trucks. This veto emphasized the DMV's role in evolving rules based on technology advancements.
Recent catalysts for change include public safety concerns following 2023-2024 incidents, stakeholder workshops in 2023, and draft regulations released in April 2025. These led to revised proposals in December 2025, with a public comment period ending December 18, 2025.
Two key bills signed in 2025 have reshaped AV protocols, focusing on accountability and visibility.
Authored by former Assemblymember Philip Ting, AB 1777 addresses gaps in enforcing traffic laws on driverless AVs and improves interactions with first responders. Effective largely from July 1, 2026, it amends Vehicle Code Section 38750 and adds Sections 38751-38753.
DMV permits won't be renewed without compliance certification. This law responds to incidents where AVs blocked emergency vehicles, ensuring better integration.
Effective January 1, 2026, SB 480 authorizes AVs to use Automated Driving System (ADS) marker lamps per SAE standards J3134 (May 2019) and J578 (April 2020). These lamps emit a distinct light (e.g., specific color or pattern) to signal when the ADS is active, alerting pedestrians, drivers, and officers.
In December 2025, the DMV released revised draft regulations for AV testing and deployment, building on April 2025 proposals and stakeholder input. These apply to both light- and heavy-duty vehicles, marking a shift from prior restrictions.
These proposals aim to balance innovation with safety, potentially enabling driverless trucks soon after finalization (expected mid-2026).
AV companies must invest in compliance, like two-way comms and safety cases, potentially delaying deployments but fostering trust. Heavy-duty expansions could revolutionize logistics, but unions like Teamsters oppose, citing job losses.
Protocols address real-world issues: Geofencing prevents AVs from entering hazard zones; notices ensure violations aren't ignored. Marker lamps reduce accidents from misjudged AV behavior.
These changes reflect California's adaptive approach, influencing national standards. However, critics argue for more stringent testing amid urban challenges. Public adoption may hinge on demonstrated safety.
California's 2025-2026 AV protocol updates—via AB 1777, SB 480, and DMV regs—prioritize accountability, emergency readiness, and expansion to heavier vehicles. As the state navigates this tech frontier, these measures aim to harmonize innovation with public safety. For a hypothetical 300-page expansion, one could delve into case studies, global comparisons, and predictive modeling—but this overview captures the essence. Stay tuned for DMV finalizations, which could further shape the road ahead.
Referred to this by a friend - thanks for the funny, random comments inserted in between the text. and for the colloquial tone. easy to follow along as opposed to dry stats and figures.
- Julie S
