House bills can be submitted by any freight forwarders with an 8000 carrier code or their modal carrier code (something new CBSA added). The key is whether you are bonded or not. If you are non-bonded, it puts a restriction on the movement of the goods on your cargo documents. Non-bonded FFs (bonded freight forwarders must be Canadian residents) can submit House bills but they cannot move on the house bill. It will require a paper re-manifest to move beyond the primary warehouse. Unless the primary itself is destined to the place of release.