# Amendment of Class D and Class E Airspace; Portland-Hillsboro, OR
> **Rule** · Final rule. · Published 2013-05-24 · Effective 2013-08-22 · 78 FR 31396
## Document
- **Document number:** 2013-12314
- **Category:** airspace
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 78 FR 31396
- **Publication date:** 2013-05-24
- **Effective date:** 2013-08-22
- **FAA docket:** Docket No. FAA-2012-1142
## Abstract

This action modifies Class E airspace at Portland-Hillsboro Airport, Portland-Hillsboro, OR, to accommodate aircraft departing and arriving under Instrument Flight Rule (IFR) operations at the airport. Also, the geographic coordinates are updated for the airport. This action, initiated by the biennial review of the Portland-Hillsboro airspace area, improves the safety and management of IFR operations at the airport.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2013/05/24/2013-12314/amendment-of-class-d-and-class-e-airspace-portland-hillsboro-or)
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