# CCPA Step 04: Respect the GPC or Global Privacy Control

Although not directly a part of the CCPA, California’s regulator, the CPPA has made clear that it will prosecute businesses that do not comply with the GPC. The GPC or [Global Privacy Control](https://globalprivacycontrol.org/) is a global signal, set in a consumer’s browser that allows the user to opt out of data sharing for the purpose of marketing.

Given this, it is the same as a user opting out on your website and is a signal you must respect.

In order to comply with the GPC you can implement the GPC directly using the GPC's [own specification and implementation guide](https://globalprivacycontrol.org/implementation). You also can implement via the [IAB’s USP API](https://globalprivacycontrol.org/implementation#USPAPI).

If you're interested in learning more, you can read our [privacy engineering tutorial on what the GPC is and how to support it now](/content/docs/regulations/gpc/index.html).

If you're unsure how to support the GPC, you can ask a question on the [Fides Slack Community](https://fid.es/join-slack), or get [Privacy Engineering Intelligence from Ethyca](/content/speak-with-us?utm_source=docs-site/index.html) now.