# Amendment of Class D and Class E4 Airspace; Caldwell, NJ
> **Rule** · Final rule. · Published 2026-03-26 · Effective 2026-07-09 · 91 FR 14647
## Document
- **Document number:** 2026-05859
- **Category:** airspace
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 91 FR 14647
- **Publication date:** 2026-03-26
- **Effective date:** 2026-07-09
- **FAA docket:** Docket No. FAA-2026-2808
## Abstract

This action updates the geographic coordinates for Essex County Airport, Caldwell, NJ, in the Class D and Class E4 airspace legal descriptions. This action also replaces the reference to "Airport/Facility Directory" within the airspace legal descriptions with "Chart Supplement." This action does not change the airspace boundaries or operating requirements.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2026/03/26/2026-05859/amendment-of-class-d-and-class-e4-airspace-caldwell-nj)
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