# Revocation of Colored Federal Airway Blue 9 (B-9); Eastern United States
> **Rule** · Final rule. · Published 2024-06-24 · Effective 2024-09-05 · 89 FR 52356
## Document
- **Document number:** 2024-13677
- **Category:** other
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 89 FR 52356
- **Publication date:** 2024-06-24
- **Effective date:** 2024-09-05
- **FAA docket:** Docket No. FAA-2023-2195
## Abstract

This action revokes Colored Federal Airway Blue 9 (B-9) in the eastern United States. The FAA is taking this action due to the decommissioning of the Marathon, FL (MTH), Nondirectional Radio Beacon (NDB).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2024/06/24/2024-13677/revocation-of-colored-federal-airway-blue-9-b-9-eastern-united-states)
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