# Search: 150

Advisory circulars: 3 matches in release 2026-10-30. Page 1.

- [AC 20-150B](https://openairdocs.org/ac/20-150.md): Airworthiness Approval of Satellite Voice (SATVOICE) Equipment Supporting Air Traffic Service (ATS) Communication · Approved Dec 23, 2014
- [AC 20-150](https://openairdocs.org/ac/20-150.md?v=3C69DF14488F890A8625711E006E7798): Satellite Voice Equipment as a Means for Air Traffic Services Communications · Approved Feb 10, 2006 · superseded or historical
- [AC 20-150A](https://openairdocs.org/ac/20-150A.md): Airworthiness Approval of Satellite Voice Equipment Supporting Air Traffic Service (ATS) Communication · Approved Aug 22, 2011 · superseded or historical

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