Correction or modification of designations made pursuant to this subpart may occur under the following circumstances:

(a) Administrative corrections. Administrative corrections to the maps of lands identified in §294.22(c) include, but are not limited to, adjustments that remedy clerical errors, typographical errors, mapping errors, or improvements in mapping technology. The Chief may issue administrative corrections after a 30-day public notice and opportunity to comment.

(b) Modifications. The Chief may add to, remove from, or modify the designations and management classifications listed in §294.29 based on changed circumstances or public need. The Chief shall provide at least a 45-day public notice and opportunity to comment for all modifications.