What happened to the red stamp or marking that was added to plastic milk containers after June 1?
As of November 1, 2009, the marking has been removed by dairy processors. The marking was added to containers to correspond with the June 1 integration of milk containers as a way for bottle depots to ensure the containers had been purchased in Alberta on or after June 1 and a deposit had been paid on them. Now that most containers purchased before that date have been returned for recycling, dairy processors are removing the marking to eliminate the extra manufacturing steps required to mark the containers. Some containers will still have the red marking after November 1, until inventories are depleted.