---
kind: "section"
citation: "47 C.F.R. § 95.3103"
title: "47"
number: "95.3103"
heading: "Definitions."
url: "https://uscodex.org/cfr/47/95.3103"
---

# §95.3103. Definitions.


Cellular Vehicle to Everything (C-V2X). See [§ 90.7](/cfr/47/90.7.md) of this chapter.

Dedicated Short-Range Communications Services (DSRCS). See [§ 90.7](/cfr/47/90.7.md) of this chapter.

Geofenced Onboard Unit. An OBU that incorporates geofencing to protect the appropriate areas around federal radiolocation sites currently enumerated in [47 CFR 90.387(b)](/cfr/47/90.387.md?p=b) by reducing power within those areas. Such OBUs programmed with information about these sites have the option of operation under the transmit power limits set forth in [section 95.3404](/cfr/47/95.3404.md) of this subpart.

Geofencing. For the purposes of this subpart, geofencing is used to create a virtual boundary around a physical location by enabling a radiofrequency device using a geolocation capability to determine whether its geographic coordinates are within a defined geographic area.

On-Board Unit (OBU). See [§ 90.7](/cfr/47/90.7.md) of this chapter.

Roadside Unit (RSU). See [§ 90.7](/cfr/47/90.7.md) of this chapter.


## Notes

### Amendments

[82 FR 41104, Aug. 29, 2017, as amended at 89 FR 100855, Dec. 13, 2024]

### Authority

Authority: 47 U.S.C. 154, 303, 307.

### Source

Source: 82 FR 41104, Aug. 29, 2017, unless otherwise noted.

### Amendments

[82 FR 41104, Aug. 29, 2017, as amended at 89 FR 100855, Dec. 13, 2024]