---
kind: "section"
citation: "47 C.F.R. § 10.530"
title: "47"
number: "10.530"
heading: "Common vibration cadence."
url: "https://uscodex.org/cfr/47/10.530"
---

# §10.530. Common vibration cadence.


A Participating CMS Provider and equipment manufacturers may only market a mobile device for public use under [part 10](/cfr/47/part10.md) as a “WEA-capable mobile device” if the mobile device includes a vibration cadence capability that meets the requirements of this section.

- (a) The vibration cadence must have a temporal pattern of one long vibration of two (2) seconds, followed by two short vibrations of one (1) second each, with a half (0.5) second interval between each vibration. The entire sequence must be repeated twice with a half (0.5) second interval between each repetition.
- (b) The vibration cadence must be restricted to use for Alert Messages under [part 10](/cfr/47/part10.md).
- (c) A device may include the capability to mute the vibration cadence.

## Notes

### Amendments

[73 FR 43117, July 24, 2008, as amended at 90 FR 12468, Mar. 18, 2025]

### 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

[73 FR 43117, July 24, 2008, as amended at 90 FR 12468, Mar. 18, 2025]