ABSTRACT: Volume 3A is the fifth in a series of documents supporting access billing. It contains edits that Exchange Companies should apply to the Billing Data Tape (BDT) prior to the release to the customers. Edits include balancing routines and element indicator population cross-checks. The updates for this volume include adding an Appendix for the change control history of the document. The Appendix is a work-in-progress with the end goal to provide the history of changes from 2000 - present. CABS modifications presented in revisions of this document are summarized to provide a cumulative history of changes. The Appendix identifies the specific additions, deletions and changes made to the supporting text for CABS elements since January 2000.