Modification of Restricted Areas R-2303A and R-2303B, and Establishment of R-2303C, Fort Huachuca, AZ

This action amends Restricted Areas R-2303A and R-2303B, and establishes R-2303C at Fort Huachuca, AZ. R-2303A is amended to exclude the Fort Huachuca/Libby AAF/Sierra Vista Municipal Airport from the restricted area and provide airspace for visual flight rules (VFR) access to the airport when R-2303A is in use. This action lowers the floor and ceiling and revises the lateral dimensions of R-2303B in order to accommodate unmanned aerial vehicle training profiles. R-2303B is further subdivided by redesignating the southeast corner of the existing area as a separate restricted area, R-2303C. Additionally this action reduces the published hours of operation for R-2303A and R- 2303B. The purpose of these changes is to accommodate increased training requirements and to return unneeded special use airspace to the National Airspace System (NAS).