The Panel and Appellate Body in Tuna-Dolphin GATT Case (I and II) held that the US labeling measures for dolphin-safe tuna was a technical regulation. The requirements were not compulsory for the sale of tuna in the US, however the requirements were compulsory for dolphin-safe certification. The Appellate Body stated that because the US provided no other methods of obtaining the dolphin-safe label, the requirement was binding, and therefore mandatory. It appears from this decision that measures that attempt to obtain a monopoly over a specific label will be deemed technical regulations, but the test is ultimately on a case-by-case basis.