Assistive Technology
For individuals, families, schools, and employers
Helping people find and use technology that works for them
Explore Assistive TechnologyMaking access work in real life
We connect people, ideas, and technology to create practical solutions that expand access for everyone.
Access at every level
From the technology one person uses, to the digital products millions rely on, to the policies that shape access across California, C4AT works to expand access at every level.
Digital Accessibility
For businesses, public agencies, nonprofits, and digital teams
Creating a digital world that is accessible for everyone
Explore Digital Accessibility
Policy and Advocacy
For regulators, utilities, and the disability community
Shaping policies that expand access for people with disabilities
Explore Policy and Advocacy
Connected to Community
Disability-led • Community-connected
C4AT is part of a broader disability community.
From our home at the Ed Roberts Campus to our classes, workshops, and community partnerships, we connect people with knowledge, resources, opportunities, and each other.
More than four decades of advancing access
For more than four decades, C4AT has been part of Berkeley's disability rights community, working alongside people with disabilities, advocates, organizations, and community partners to expand access to technology.
Technology is constantly evolving, and so are we. Since C4AT began with early personal computers and assistive technology, our work has expanded to include websites, apps, documents, AI, and public policy. As new technologies emerge, we continue to adapt, innovate, and look ahead—ensuring people with disabilities remain at the heart of shaping a more accessible future.
That history, and the relationships built along the way, still shape how we work today.
40+Years advancing access
WCAG 2.2A/AA digital accessibility expertise
Disability-ledGrounded in lived experience
501(c)(3)Mission-driven nonprofit
How we work
Practical
Whether finding tools for individuals or working with teams to make digital assets, C4AT is known for its practical, realistic approach. We focus on pragmatic, achievable accessibility solutions that actually work.
Flexible
Every person and organization is different. We adapt our approach to your goals, needs, resources, and situation.
Connected
C4AT is by and for people with disabilities. Our home at the Ed Roberts Campus keeps us connected to the disability community, and that connection informs our technical work.
Who we work with
From classrooms to boardrooms: C4AT works with individuals and organizations across a wide range of communities and sectors.
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Explore what’s happening
Explore accessibility updates, community resources, and work from across C4AT.
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DOJ Title II Rule
DOJ sets digital accessibility requirements for state and local government
The U.S. Department of Justice’s Title II web and mobile accessibility rule requires state and local governments to meet WCAG 2.1 Level AA for covered web content and mobile apps. Current compliance dates are April 26, 2027 for public entities serving 50,000 or more people, and April 26, 2028 for smaller public entities and special district governments.
Learn how C4AT can help Read the DOJ rule (opens an external page) -
From Our Community
Classes, workshops, and assistive technology resources
Learn about opportunities to explore technology, build skills, and connect with C4AT and the disability community.
Explore Community -
C4AT in the News
Tensions flare as $34-billion Charter-Cox cable deal nears finish line
The Los Angeles Times examines California’s review of Charter’s proposed acquisition of Cox. C4AT counsel Paul Goodman explains that the goal is to ensure historically overlooked communities receive the same benefits from the transaction, amid concerns about affordable broadband, disaster protections, and workplace inclusion.
Read the Los Angeles Times article (opens an external page)
Let's make technology work for everyone.
Your support helps expand access to technology for people with disabilities.
Donations help C4AT provide community resources, share knowledge, strengthen disability-led technology work, and continue advancing access.