California’s New Age Verification Law: What It Means for Your Devices

California is poised to become the first state to require age verification on computers and smartphones, a move that could significantly impact how users access online content and how developers design their applications. The Digital Age Assurance Act, signed into law in October 2025, mandates that operating system providers collect age information during device setup, potentially influencing national tech standards and raising privacy concerns.

What is the Digital Age Assurance Act?

The Digital Age Assurance Act (AB 1043) aims to protect children online by requiring operating systems to determine a user’s age bracket – under 13, 13-15, 16-17, or 18 and older – and signal this information to app stores and developers. AB 1043 builds upon existing internet protections for minors, including the California Age-Appropriate Design Code Act, which already requires businesses to estimate the age of child users.

How Will This Affect You?

Beginning January 1, 2027, when setting up a new device in California, users will likely be asked for their age during the account creation process. This applies to major operating systems like Windows, macOS, Android, and iOS, as well as Linux distributions. PCWorld reports that this will likely occur when creating accounts with Microsoft, Google, or Apple.

How Will Developers Be Affected?

The law requires developers to request age information from the operating system to provide age-appropriate content. This means app stores, such as Steam and the Microsoft Store, will demand to integrate with the operating system’s age verification system. Developers will receive a “digital signal” indicating the user’s age bracket, allowing them to tailor content accordingly. This could potentially prevent children from accessing mature games or other age-restricted material.

Self-Reporting and Potential Challenges

Currently, the law relies on self-reported age data, meaning users are not required to provide proof of age. PCWorld notes that it remains unclear how the system will handle age transitions (e.g., a 17-year-old turning 18). The lack of robust verification raises questions about the effectiveness of the law.

Compliance and Penalties

Operating system providers and developers who fail to comply with the Digital Age Assurance Act could face significant fines. Penalties include $2,500 per child for “negligent violations” and $7,500 per child for “intentional violations.”

Will This Spread Beyond California?

While the law currently applies only to California, its impact could be far-reaching. Historically, California’s regulations, such as those related to fuel efficiency, have influenced national standards. Although, other instances, like Microsoft’s “N” version of Windows for the European Union, demonstrate that companies may implement region-specific changes. Whether this law will be adopted by other states remains to be seen.

Key Takeaways

• California’s Digital Age Assurance Act requires age verification during device setup.
• The law applies to all major operating systems, including Windows, macOS, Android, iOS, and Linux.
• Developers will need to request age information from the operating system to provide age-appropriate content.
• The law relies on self-reported age data, raising concerns about accuracy.
• Non-compliance could result in substantial fines.