Compliance Radar · Privacy and consent
California will require browsers to offer a built-in opt-out preference signal
From 2027, browsers must offer a built-in opt-out signal, so expect more GPC traffic.
- Status
- Enacted; not yet operative
- Takes effect
- January 1, 2027
- Announced
- Oct 8, 2025 (AB 566 signed)
- Type
- law
What changed
AB 566 requires browsers to offer an easy-to-find opt-out signal such as GPC. Expect more California visitors to send it.
Who it affects
Browser makers; indirectly, every CCPA-covered site, which must already honor the signal.
What to do
- Confirm your site detects GPC, including for logged-in accounts.
- Show a confirmation that the opt-out was honored.
- Make sure no sale or sharing tags fire.
What ComplyMo already handles
Page audits and daily re-checks: Growth and up. Everything else: every plan, from $19 a month.
Sources
- CPPA: Governor signs AB 566 (California Opt Me Out Act) (opens in a new tab)
- California Legislature: AB 566 (2025) (opens in a new tab)
- Orrick InfoBytes: browser opt-out law (opens in a new tab)
Summary of public sources, not legal advice.