Google Trust Services operates a number of CAs in accordance with our combined Certification Practice Statement (CPS) and Certificate Policy (CP), referred to as our CP/CPS. A CP/CPS is provided for both TLS and S/MIME CAs. Prior to July 2025, we provided the CP and CPS separately, which are now archived toward the bottom of this page.
Our TLS CP/CPS provides information about GTS's TLS certificate issuance practices.
Our S/MIME CP/CPS provides information about GTS's S/MIME certificate issuance practices.
Use of Google Trust Services is subject to the Subscriber Agreement and the Relying Party Agreement.
The Subscriber Agreement describes your responsibilities as a user who has requested a certificate.
The Relying Party Agreement describes the responsibilities of everyone who relies on a certificate that the service has issued for a website.
Certificate Practice Statements and Certificate Policies were combined into combined documents in July 2025. The previous versions of these documents are archived below.
Our Certification Practice Statement provides information about the types of certificates we issue and how we ensure they are trusted.
Our TLS Certificate Policy states which organizations belong to the Google Trust Services public key infrastructure (PKI) for TLS Certificates and defines what their roles and duties are.
Our Certificate Policy states which organizations belong to the Google Trust Services public key infrastructure (PKI) for S/MIME Certificates and defines what their roles and duties are.