The IID can be used to release any type of cargo document, primary or secondary (house bill). However, the IID was designed to support the new timeframes for release. Therefore, when the IID is transmitted and linked to an electronic house bill, the house bill must be “arrived” before the IID can be released. Therefore, an RNS release message will not be sent until all the cargo documents (CCNs) quoted on the IID have been arrived at FPOA via Conveyance Arrival Certification Message (CACM) or at the inland sufferance warehouse via Warehouse Arrival Certification Message. In the future when the final phase of eManifest is implemented, all release service options (including RMDs) will require an arrival before release will occur.