47 CFR 10.450
§ 10.450 Geographic targeting.
United States · 47 CFR — Telecommunication · Status: effective
Cite this
- Citation
- 47 CFR 10.450, § 10.450 Geographic targeting, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/234288
- Permanent ID
ys:prov:234288@1- SHA-256
6df7cbc54c736f8003d2920ab31df458063643e89f7f1c3d6fbbc41ce462d8d4
The hash is SHA-256 of this version's text, with every run of whitespace collapsed to a single space and the ends trimmed. The ID always leads back here, and checking it says whether the text you cited is still the current version.
Full text
This section establishes minimum requirements for the geographic targeting of Alert Messages.
(a) This section establishes minimum requirements for the geographic targeting of Alert Messages. A Participating CMS Provider will determine which of its network facilities, elements, and locations will be used to geographically target Alert Messages. A Participating CMS Provider must deliver any Alert Message that is specified by a circle or polygon to an area that matches the specified circle or polygon. A Participating CMS Provider is considered to have matched the target area when they deliver an Alert Message to 100 percent of the target area with no more than 0.1 of a mile overshoot. If some or all of a Participating CMS Provider's network infrastructure is technically incapable of matching the specified target area, then that Participating CMS Provider must deliver the Alert Message to an area that best approximates the specified target area on and only on those aspects of its network infrastructure that are incapable of matching the target area. A Participating CMS Provider's network infrastructure may be considered technically incapable of matching the target area in limited circumstances, including when the target area is outside of the Participating CMS Provider's network coverage area, when mobile devices have location services disabled, and when legacy networks or devices cannot be updated to support this functionality.
(b) Upon request from an emergency management agency, a Participating CMS Provider will disclose information regarding their capabilities for geo-targeting Alert Messages. A Participating CMS Provider is only required to disclose this information to an emergency management agency insofar as it would pertain to Alert Messages initiated by that emergency management agency, and only so long as the emergency management agency offers confidentiality protection at least equal to that provided by the federal FOIA.
(c) [Reserved]
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.