The deal will avoid a shutdown of 29 ports that would have choked off trade through the West Coast.
The agreement should start easing the severe congestion that's been building up at the nation's busiest ports.
And that's been causing businesses across the nation to lose money. Imports were trapped on boats and exports were trapped on land.
Details of the proposed 5-year contract for about 20,000 West Coast dockworkers hasn't been released.