In a compliance officer training video, the speaker discusses conveyances from the Depository Trust Company (DTC) to the Depository Trust Clearing Corporation (DTCC). They explain the difference between the two entities and how certain documents, such as statements of account and bills of exchange, are used in these conveyances. The speaker emphasizes the importance of understanding the legal statutes and codes associated with these transactions, as well as the need to avoid including routing numbers in certain documents. They also touch on the concept of using transmittal letters and introduce a sample verbiage for such letters.