---
kind: "section"
citation: "47 C.F.R. § 10.430"
title: "47"
number: "10.430"
heading: "Character limit."
url: "https://uscodex.org/cfr/47/10.430"
---

# §10.430. Character limit.


A Participating CMS Provider must support transmission of an Alert Message that contains a maximum of 360 characters of alphanumeric text. If, however, some or all of a Participating CMS Provider's network infrastructure is technically incapable of supporting the transmission of a 360-character maximum Alert Message, then that Participating CMS Provider must support transmission of an Alert Message that contains a maximum of 90 characters of alphanumeric text on and only on those elements of its network incapable of supporting a 360 character Alert Message.


## Notes

### Amendments

[81 FR 75726, Nov. 1, 2016]

### Authority

Authority: 47 U.S.C. 151, 152, 154(i), 154(n), 201, 301, 303(b), 303(e), 303(g), 303(j), 303(r), 307, 309, 316, 403, 544(g), 606, 1201, 1202, 1203, 1204, and 1206. Link to an amendment published at 88 FR 86836, Dec. 15, 2023.

### Source

Source: 73 FR 43117, July 24, 2008, unless otherwise noted.

### Amendments

[81 FR 75726, Nov. 1, 2016]