This rule amends Title 14 Code of Federal Regulations part 71 by establishing a Class E airspace area extending upward from 700 feet above the surface at Potosi Washington County Airport, MO. The establishment of Area Navigation (RNAV) Global Positioning System (GPS) Instrument Approach Procedures (IAP) to Runways 2 and 20 have made this action necessary. The intended effect of this action is to provide adequate controlled airspace for Instrument Flight Rules operations at Potosi Washington County Airport, MO. The area will be depicted on appropriate aeronautical charts.