Delays with mailings to Canada entered at Los Angeles and San Francisco ISCs have been reported.  It appears the delays are largely the result of backlogs at the Canada Post Corporation (CPC) Office of Exchange in Vancouver (YVR).  The USPS received confirmation from CPC late yesterday that it is committed to moving backlogged USPS mail through customs and into the processing facility as quickly as possible.  All customs belts are operating on all shifts and employee overtime is being used.