What is AB43?
Understanding AB 43:
California’s Law Allowing Local Governments to Lower Speed Limits
Safe Routes to Downtown Los Altos works to encourage safe and accessible multimodal access to Downtown Los Altos. When we learned about AB 43, we were eager to understand how it might apply to areas in and around Downtown Los Altos. While we found great resources online, like the California Safe Speeds Toolkit from UC Berkeley’s Safe Transportation Research and Education Center (SafeTREC), we wanted to better understand the origin and purpose of AB 43 and how other Bay Area governments were planning to use the new law. This paper is a summary of our learnings and the resources we found most useful in understanding AB 43. We hope that other community leaders can use it as a resource for learning about AB 43’s potential impact on their own community.