Description
This action proposes to modify the designated altitudes of restricted area R–4201B, Camp Grayling, Michigan, by raising the ceiling from 9,000 feet msl to 23,000 feet msl to match the ceiling of the adjacent restricted area R–4201A. Additionally, this action proposes to make minor administrative changes to the R–4201B time of designation and the R–4201A and R–4201B using agency information to standardize the format describing these restricted areas. Comments must be received by Nov. 27, 2023.
Effective Date(s)