Members of the Teamsters union have authorized a strike against Costco on Feb. 1 unless they reach a deal with the warehouse retailer before the current contract expires on Jan. 31.

Members of the Teamsters union have authorized a strike against Costco on February 1 unless they reach a deal with the warehouse retailer before the current contract expires on January 31.

Teamsters said its members voted in favor of a strike as they entered a final round of talks to reach a new contract ahead of a Jan. 31 deadline.