Data / Federal rules / 2025-15809
Call Authentication Trust Anchor
The Federal Communications Commission published this final rule in the Federal Register on August 19, 2025. It took effect on September 18, 2025.
SpecStream is the live web data engine for teams and agents. It reads every rule and proposed rule in the Federal Register each morning, and this page is that reading. Name your industry once and new rules, comment deadlines and effective dates arrive in your sheet, CRM, Slack or agent as they are published.
What the agency says
In this document, the Federal Communications Commission (Commission) adopts rules that strengthen the Commission's caller ID authentication requirements by establishing clear practices for providers that rely on third parties to fulfill their STIR/SHAKEN implementation obligations. The rules authorize providers with a STIR/ SHAKEN implementation obligation to engage third parties to perform the technological act of digitally "signing" calls consistent with the requirements of the STIR/SHAKEN technical standards so long as: the provider with the implementation obligation makes the "attestation- level" decisions for authenticating caller ID information; and all calls are signed using the certificate of the provider with the implementation obligation--not the certificate of a third party. The rules also explicitly require all providers with a STIR/SHAKEN implementation obligation to obtain a Service Provider Code (SPC) token from the STIR/SHAKEN Policy Administrator and present that token to a STIR/SHAKEN Certificate Authority to obtain a digital certificate. Additionally, the rules include recordkeeping requirements for third- party authentication arrangements to enable the Commission to monitor compliance with and enforce Commission rules.
Key facts
- Document number
- 2025-15809
- Type
- Final rule
- Action
- Final rule
- Agency
- Federal Communications Commission
- Published
- August 19, 2025
- Takes effect
- September 18, 2025
- Dates
- These rules are effective September 18, 2025.
- Docket
- WC Docket No. 17-97; FCC 24-120; FR ID 304848
- Code of Federal Regulations
- 47 CFR 64
- Topics
- Communications common carriers; Reporting and recordkeeping requirements; Telecommunications; Telephone
- Pages
- 16
Other documents from the Federal Communications Commission
| Document | Type | Published |
|---|---|---|
| Enhancing the Ability of Consumers To Control the Robocalls 2026-21821 | Final rule | Oct 26 |
| Modernizing the Ability of Consumers To Control Robocalls 2026-21820 | Proposed rule | Oct 26 |
| Space Modernization for the 21st Century 2026-21818 | Proposed rule | Oct 26 |
| Petition for Reconsideration of Action in Rulemaking Proceeding 2026-21810 | Proposed rule | Oct 26 |
| Closed Captioning of Video Programming 2026-21808 | Final rule | Oct 26 |
| Modernizing the Commission's National Environmental Policy Act Rules 2026-21347 | Proposed rule | Oct 19 |
| Upper C-Band (3.98-4.2 GHz); Expanding Flexible Use of the 3.7 to 4.2 GHz Band 2026-21324 | Final rule | Oct 19 |
| Petition for Reconsideration of Action in Rulemaking Proceeding; Correction 2026-21312 | Proposed rule | Oct 19 |
Everything from the Federal Communications Commission · Rules on communications common carriers · Rules on reporting and recordkeeping requirements · Rules on telecommunications · Published in August 2025
Read from the Federal Register API, last updated 2026-10-24. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.