# Changes to Surveillance and Broadcast Services
> **Rule** · Notification of changes to surveillance services. · Published 2023-06-23 · Effective 2023-06-23 · 88 FR 41023
## Document
- **Document number:** 2023-12607
- **Category:** other
- **Type:** Rule
- **Action:** Notification of changes to surveillance services.
- **Citation:** 88 FR 41023
- **Publication date:** 2023-06-23
- **Effective date:** 2023-06-23
- **FAA docket:** Docket No.: FAA-2022-1212
## Abstract

This document announces termination of the Mode-S Traffic Information Service (TIS) at FAA terminal Mode-S radar sites. The FAA is replacing legacy terminal Mode-S radars via the Mode-S Beacon Replacement System (MSBRS) program, or may remove legacy terminal Mode- S radars as part of other ongoing activities. As each legacy terminal Mode-S Radar is replaced or removed, the FAA will no longer provide Mode-S TIS to capable transponders from that location. This change does not affect existing Traffic Information Service--Broadcast (TIS-B), Automatic Dependent Surveillance--Rebroadcast (ADS-R), or Automatic Dependent Surveillance--Same Link Rebroadcast (ADS-SLR) services currently provided to aircraft with a properly functioning Automatic Dependent Surveillance--Broadcast (ADS-B) system.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2023/06/23/2023-12607/changes-to-surveillance-and-broadcast-services)
---
*AI Analytics · CC0 1.0*