# Modification of the Atlantic High and San Juan Low Offshore Airspace Areas; East Coast, United States
> **Rule** · Final rule. · Published 2009-04-22 · Effective 2009-07-02 · 74 FR 18288
## Document
- **Document number:** E9-9137
- **Category:** airspace
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 74 FR 18288
- **Publication date:** 2009-04-22
- **Effective date:** 2009-07-02
- **FAA docket:** Docket No. FAA-2008-1259
## Abstract

This action will amend the boundaries of the Atlantic High and San Juan Low Offshore Airspace Areas located off the east coast of the United States. The implementation of the West Atlantic Route System Plus (WATRS Plus) project modified the boundaries of the Miami Control Area (CTA)/Flight Identification Region (FIR), the San Juan CTA/FIR, and the New York Oceanic CTA/FIR. This action modifies the Atlantic High and San Juan Low Offshore Airspace Area boundaries to coincide with the CTA/FIR changes.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2009/04/22/E9-9137/modification-of-the-atlantic-high-and-san-juan-low-offshore-airspace-areas-east-coast-united-states)
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