# Modification of Class D Airspace; Peru, IN
> **Rule** · Final rule. · Published 2016-09-13 · Effective 2016-11-10 · 81 FR 62810
## Document
- **Document number:** 2016-21709
- **Category:** airspace
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 81 FR 62810
- **Publication date:** 2016-09-13
- **Effective date:** 2016-11-10
- **FAA docket:** Docket No. FAA-2016-6006
## Abstract

This action modifies Class D airspace at Grissom Army Reserve Base (ARB), IN, to allow for a lower Circling Minimum Descent Altitude, where Instrument Flight Rules Category E circling procedures are being used. This action increases the area of the existing controlled airspace for Grissom ARB, IN. Additionally, this action will add Peru, Grissom ARB, IN to the subtitle of the airspace designation.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2016/09/13/2016-21709/modification-of-class-d-airspace-peru-in)
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