# Amendment of Class E Airspace; Riverton, WY
> **Rule** · Direct final rule; confirmation of effective date. · Published 1999-01-26 · 64 FR 3833
## Document
- **Document number:** 99-1559
- **Category:** airspace
- **Type:** Rule
- **Action:** Direct final rule; confirmation of effective date.
- **Citation:** 64 FR 3833
- **Publication date:** 1999-01-26
- **FAA docket:** Airspace Docket No. 98-ANM-15
## Abstract

The direct final rule published on October 30, 1998 (63 FR 58299) changed the Riverton, WY, Class E surface airspace legal description from part-time to continuous. The FAA commissioned an Automated Surface Observing System (ASOS) at the Riverton Regional Airport which makes the airport eligible for continuous Class E surface airspace.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1999/01/26/99-1559/amendment-of-class-e-airspace-riverton-wy)
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