All imports into Canada are affected.
If you import into Canada, you must register for the CARM Client Portal and delegate authority to your customs broker. Whether you have one shipment or many, you will be impacted.
CARM Release 3 introduced a new financial security model whereby all commercial importers must post their own financial security to benefit from the Release Prior to Payment program. To help importers adjust to this new financial security model, a 180-day transition period is being implemented, allowing goods to be released prior to the payment of duties and taxes.