Archives of Directives

Version history of DOE N 251.93

Every revision of DOE N 251.93 held in Directives, oldest first — 3 documents, with the supersession and cancellation dates that connect them.

This history is not a single line of descent. Some of these documents are here because one revision replaced several earlier documents at once, bringing their own histories with it.

  1. DOE G 421.1-1Criticality Safety Good Practices Program Guide for DOE Nonreactor Nuclear Facilities

    ArchiveIssued Aug 25, 1999Retired Nov 19, 2010

  2. DOE G 421.1-1 AppendicesDOE Good Practices Guide

    ArchiveIssued Aug 25, 1999Retired Nov 19, 2010

  3. superseded by

  4. DOE N 251.93Cancellation of DOE G 421.1-1, Criticality Safety Good Practices Program Guide for DOE Nonreactor Nuclear Facilities

    Current versionArchiveIssued Nov 19, 2010

Back to DOE G 421.1-1 Appendices