Amendment of Chicago Class B and Chicago Class C Airspace; Chicago, IL

This action corrects a final rule published in the Federal Register of August 16, 2018, that amended the Chicago Class B and Chicago Class C airspace area descriptions by changing references to the Chicago O'Hare VHF Omnidirectional Range/Distance Measuring Equipment (VOR/DME) to "Point of Origin." Additionally, the Chicago Class B and Chicago Class C airspace area descriptions were edited to reflect the Chicago Midway International Airport name change to match the current information in the FAA's aeronautical database. The Chicago Class B airspace description listed in the rule is corrected to reflect updated geographic coordinates for the Chicago O'Hare International Airport airport reference point (ARP), updated geographic coordinates for two points in the Area A description, and updated geographic coordinates for one point in the Area F description.