On July 5, 2018, the Canada Border Services Agency (CBSA) announced an upcoming change to the earliest time in which imported goods may be released.
Once the change is implemented, the mode-specific timeframes (Memorandum D17-1-4 Release of Commercial Goods) will no longer apply. Additionally, CBSA will not release the goods until their arrival at the final destination. What this change amounts to is that brokers will no longer receive penalties for filing entries with certain modes of transportation prior to arrival.
The implementation date is still to be determined.
The CBSA Customs Notice may be found here: