Is WACM required for paper cargo control documents (i.e., re manifests, A8A, house bills) or for shipments with an exception or exemption to eManifest data?

Is WACM required for paper cargo control documents (i.e., re manifests, A8A, house bills) or for shipments with an exception or exemption to eManifest data?

Yes, WACM is required for all paper cargo control. The warehouse Operator will get a “ERC 01- no CCN on file” message when transmitting a WACM for a paper-controlled shipment. But the CBSA will deem that they have fulfilled their obligation to transmit the warehouse arrival.