delisting; removal of a designation
Used in administrative, legal, or regulatory contexts when a previously assigned status, label, or classification is officially removed.
The area was delisted as a flood hazard zone.
The delisting procedure takes several months.
指定 means 'designation' or 'assignment'; 指定解除 is the removal of that designation.
解除 means 'cancellation' or 'release' in general; 指定解除 specifically refers to the cancellation of a designation.
Compound of 指定 (designation) and 解除 (cancellation, release).