# Establishment of Class D Airspace; San Marcos, TX
> **Rule** · Final rule. · Published 2010-07-20 · Effective 2010-09-23 · 75 FR 41983
## Document
- **Document number:** 2010-17500
- **Category:** airspace
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 75 FR 41983
- **Publication date:** 2010-07-20
- **Effective date:** 2010-09-23
- **FAA docket:** Docket No. FAA-2010-0406
## Abstract

This action establishes Class D airspace for San Marcos Municipal Airport, San Marcos, TX. Establishment of an air traffic control tower has made this action necessary to enhance the safety and management of Instrument Flight Rule (IFR) operations at the airport. A minor change in the airport descriptor also has been made.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2010/07/20/2010-17500/establishment-of-class-d-airspace-san-marcos-tx)
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