Revision of Restricted Area 5107A; White Sands Missile Range, NM

This action revises Restricted Area 5107A (R-5107A), White Sands Missile Range, NM, by subdividing the area to reduce the size of R-5107A, and establish R-5107K. Together, R-5107A and R-5107K will occupy the same vertical, but slightly smaller lateral area than the existing R-5107A. The FAA is taking this action in response to a request from the United States (U.S.) Army to divide the existing R- 5107A into two restricted areas, R-5107A and R-5107K. This action will fulfill Department of Defense training requirements while freeing unused airspace for use by nonparticipating civil aircraft. Additionally, this action will allow the U.S. Army to activate only that portion of the airspace necessary to contain their operations.