Open Source OS Exempted from CA and CO Age Verification

Understand how new state-level age verification laws impact software distribution and open-source compliance.
30-Second TL;DR
What Changed
California and Colorado passed new age verification laws
Why It Matters
This regulation sets a precedent for how software platforms must handle user data and age gating, potentially impacting how developers distribute software in these regions.
What To Do Next
Review your application's distribution model to determine if it qualifies as an OS-level service or an app store subject to state-level age verification.
Key Points
- •California and Colorado passed new age verification laws
- •Open-source operating systems are explicitly exempted
- •Hybrid platforms like SteamOS remain subject to potential compliance
Deep Insight
Background and context from public sources — not the original article. 14 sources cited.
Enhanced Key Takeaways
- •The Colorado age verification bill (SB 26-051) is in its final form and is slated to become effective on July 1, 2028, while the California amendment (AB 1856, revising AB 1043) is still undergoing its third hearing and, if approved, would take effect on January 1, 2027.
- •The open-source exemption in both California and Colorado legislation is specifically tied to license terms that allow users to copy, redistribute, and modify software without platform-imposed technical or contractual restrictions on installing modified versions.
- •System76 CEO Carl Richell played a significant role in lobbying Colorado lawmakers to include the open-source exemption in their age verification bill.
- •The original California Digital Age Assurance Act (AB 1043), enacted in October 2025, initially mandated that all operating systems collect user age during setup and provide a real-time 'age bracket signal' to applications.
- •There is ongoing debate regarding whether the GNU General Public License (GPL) would qualify for the open-source exemption, as some interpretations suggest its copyleft restrictions might be considered 'restrictions' under the law.
- •The California law specifies four age brackets ('under 13,' '13-15,' '16-17,' and '18+') that operating systems must use to categorize users and provide via an API to requesting applications.
- •In response to similar age verification laws, the open-source operating system MidnightBSD has already implemented a block on downloads for residents in jurisdictions with such requirements, highlighting the compliance challenges for smaller projects.
Technical Deep Dive
- Operating systems are required to collect a user's age or birth date during the initial account setup process.
- The OS must then categorize users into specific age brackets: 'under 13', '13-15', '16-17', and '18+'.
- A real-time API signal must be provided by the operating system, allowing applications to query and receive the user's age bracket when downloaded or launched.
- For open-source Linux distributions to comply, they would need to modify their installers, alter user account schemas to store age metadata, and develop an API service daemon for age signal provision.
- The Colorado exemption specifically applies to providers distributing software under license terms that permit copying, redistribution, and modification 'without any platform-imposed technical or contractual restrictions imposed by the provider or developer on installing all modified versions.'
- The California exemption uses similar language, referring to 'license terms that permit a recipient to copy, redistribute, and modify the software.'
Future ImplicationsAI analysis grounded in cited sources
Timeline
- 2023-01Louisiana's Act 440 goes into effect, requiring adult content websites to implement age verification.
- 2023-05Utah passes SB 287, mandating age verification for adult content sites, contingent on similar laws in five other states.
- 2024-04Georgia enacts SB 351, requiring age verification for social media platforms and parental consent for minors under 16.
- 2025-10California's original Digital Age Assurance Act (AB 1043), requiring OS-level age verification, is signed into law.
- 2026-02California Assembly Member Buffy Wicks introduces AB 1856, an amendment to AB 1043, proposing exemptions for most open-source operating systems.
- 2026-04Colorado's age-attestation bill (SB 26-051) passes the House committee with new exemptions for open-source operating systems and applications.
Sources (14)
Factual claims are grounded in the sources below. Forward-looking analysis is AI-generated interpretation.
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