Modification of Restricted Areas R-3804A, R-3804B, and R-3804C; Fort Polk, LA

This action expands the lateral boundary of restricted area R- 3804B, Fort Polk, LA, and raises the restricted area ceiling to, but not including 10,000 feet mean sea level (MSL). The expanded restricted area airspace will contain new live fire ranges to support mission requirements of the U.S. Army in order to fully exploit the capabilities of modern weapons systems and complex training scenarios that replicate conditions encountered during military deployments today. This action also amends time of designation for R-3804A and R- 3804B to better reflect when the restricted areas are in use by the U.S. Army and when the airspace is available to nonparticipants. Lastly, this action makes administrative editorial corrections to the R-3804A, R-3804B, and R-3804C legal descriptions.