[Code of Federal Regulations] [Title 32, Volume 6] [Revised as of July 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 32CFR2001.50] [Page 488-489] TITLE 32-NATIONAL DEFENSE CHAPTER XX--INFORMATION SECURITY OVERSIGHT OFFICE, NATIONAL ARCHIVES AND RECORDS ADMINISTRATION PART 2001_CLASSIFIED NATIONAL SECURITY INFORMATION--Table of Contents Subpart D_Safeguarding Sec. 2001.50 Technical security [4.1]. Based upon the risk management factors referenced in Sec. 2001.40 of this directive agency heads shall determine the requirement for technical countermeasures such as Technical Surveillance Countermeasures (TSCM) and TEMPEST necessary to detect or deter exploitation of classified information through technical collection methods and may apply countermeasures in accordance with NSTISSI 7000, entitled Tempest Countermeasures for Facilities, and SPB Issuance 6-97, entitled [[Page 489]] National Policy on Technical Surveillance Countermeasures.