Does Google Ads Use Consent Mode for CCPA Compliance in California?

No. Google Ads handles California's CCPA compliance through a separate feature called Restricted Data Processing (RDP), not Consent Mode. Consent Mode is the mechanism Google requires for the EEA, UK, and Switzerland under GDPR-style consent-based rules; RDP is built specifically around CCPA's opt-out model and works differently.

The Core Difference: Opt-Out vs. Opt-In

GDPR, which Consent Mode addresses, is fundamentally a consent-based (opt-in) framework — Google needs an affirmative signal that a user in the EEA or UK has consented before certain ad features can run. CCPA is fundamentally an opt-out law: California users are assumed to be trackable by default, and businesses must honor a user's request to opt out, such as via a "Do Not Sell or Share My Information" link or a detected Global Privacy Control signal.

How Restricted Data Processing Works

When RDP is applied to a user, Google limits how that person's data can be used for advertising — for example, ads are no longer personalized and rely on contextual signals like site content instead, and that user won't be added to remarketing or similar-audience lists. Conversion tracking and campaign measurement continue functioning normally even with RDP applied, since those aren't the data uses CCPA restricts.

Two Ways to Apply It

• Account-wide — apply Restricted Data Processing to all California traffic by default
• Per-user, on opt-out — add the restricted_data_processing parameter to your tag setup so RDP activates only for users who explicitly opt out, such as by clicking a "Do Not Sell My Information" link

A Relevant Recent Change

As of July 1, 2023, Google stopped acting as a "service provider" in California for cross-context behavioral advertising, which affects Restricted Data Processing's availability for Customer Match specifically — a detail worth checking against current Google Ads Help documentation if your account relies on Customer Match audiences.

Bottom Line

Don't assume Consent Mode setup covers your CCPA obligations — if you serve California traffic, confirm Restricted Data Processing is configured separately, since it's the feature Google actually built for that law.

Sources: Google Ads Help, "Helping advertisers comply with the U.S. states' privacy laws" (support.google.com/google-ads/answer/9614122); Martech, "Google Ads intros 'restricted data processing' capability for CCPA compliance."