Washington winemakers have chafed for years over the unequal treatment their bottles receive in grocery stores in British Columbia. Imported Washington wines can't sit on the shelves next to B.C. wines. If Washington wines are sold in grocery stores, they have to be located in a "store within the store," a requirement that physically separates imports from domestic wines and requires a separate checkout. The proposed U.S.-Mexico-Canada Trade Agreement would end that practice by November 2019, giving equal treatment to wines from Washington and other states on the grocery aisle.