Based on public comments, DoD is proposing additional amendments to a rule last published on December 21, 2020. This amendment addresses comments received on requests for guidance and the cost to implement Security Executive Agent Directive (SEAD) 3, as well as to provide clarification on safeguarding procedures for the protection and reproduction of classified information. It also includes DoD’s response to public comments received regarding controlled unclassified information, National Interest Determination requirements for cleared contractors operating under a Special Security Agreement for Foreign Ownership, Control or Influence, and eligibility determinations for personnel security clearance processes and requirements, among others.