After deeds of trust or amendments, assumption agreements, and like instruments are received and noted in the notebook, they are photocopied and placed in a set of books separate and apart from the deeds and other instruments related to transfers of equitable interests in real property.  The books are generally known as trust deed books.  T.C.A. § 8-13-108.

The register is required to index the deed of trust amendments and other instruments affecting or modifying the original deed of trust in separate direct and reverse indexes in the same manner as warranty deeds are indexed.  T.C.A. § 10-7-105.  Also in the same manner as warranty deeds, the deed of trust is returned to the person offering it for recording, usually the mortgagee, after it is recorded.