For large organizations, a Configuration Management (CM) office maintains the master record. Request the "Current Active Revision" status of TDT 2011 01A. It is possible that Rev A is no longer active if Rev B or C has been released. Never assume the alphanumeric suffix is current.

Between 2009 and 2012, global automotive regulations were rapidly evolving (e.g., Euro 5, Tier 2 Bin 5 in the US). An OEM might use as an internal Technical Design Verification report for a fuel evaporation system or airbag control module.