Unionized truck drivers at Port Metro Vancouver have now issued 72 hour strike notice.
Unless there is an agreement they will be going on strike Thursday, March 6 at noon.
The vote to strike came after a work stoppage by the United Truckers Association.
The union represents about 400 truck drivers, who would join the non-union truckers who launched job action last week.
The group of around 1,000 non-unionized workers walked off the job over a number of issues, including long wait times and low rates of pay.
Unifor is asking for rates to rise and be standardized and enforced across the sector to prevent under-cutting.