APHIS rejected the first alternative because it believed scientific evidence permitted importation of pork products from Sonora and not permitting such importation would be contrary to trade agreements entered into by the United States.
The United States entered into the trade agreement to permit imported pork products from Sonora over a decade ago.
mnli hypothesis: The United States entered into the trade agreement to permit imported pork products from Sonora over a decade ago. premise: APHIS rejected the first alternative because it believed scientific evidence permitted importation of pork products from Sonora and not permitting such importation would be contrary to trade agreements entered into by the United States.