Termination of anti-dumping investigations when evidentiary, margin, volume, or industry-request grounds justify ending the probe. The designated authority shall terminate an anti-dumping investigation by public notice if: a written request is received from or on behalf of the domestic industry that initiated the investigation; there is insufficient evidence of dumping or injury to justify continuation; the margin of dumping is less than two per cent of the export price; the volume of dumped imports from a particular country is less than three per cent of imports of the like product (unless such low-volume countries collectively exceed seven per cent); or the injury is negligible.