The following document was requested through a Mandatory Declassification Review (MDR) request by The Black Vault in February 2019. The records was released at an unknown previous date, but had some of the report redacted.
The MDR was a success, and some of those redactions were lifted on the June 2019 released by the NSA to The Black Vault. I put a “highlighted” version below so you can see the newly released information.
National Security Agency / Central Security Service Transition 2001, December 2000 – Highlighted Version – [45 Pages, 13MB]