AA-D-600D (AMENDMENT 4), FEDERAL SPECIFICATION: DOOR, VAULT, SECURITY (05 JAN 2010)

AA-D-600D (AMENDMENT 4), FEDERAL SPECIFICATION: DOOR, VAULT, SECURITY (05 JAN 2010)., The General Services Administration has authorized the use of this amendment, which forms a part of AA-D-600D, dated May 15, 2000, by all federal agencies.