<Li> Section 1--TEMPEST </Li> <Li> Section 2--Defense Technical Information Center (DTIC) </Li> <Li> Section 3--Independent Research and Development (IR&D) Efforts </Li> <P> DoD 5220.22 - M is sometimes cited as a standard for sanitization to counter data remanence . The NISPOM actually covers the entire field of government--industrial security, of which data sanitization is a very small part (about two paragraphs in a 141 - page document). Furthermore, the NISPOM does not actually specify any particular method . Standards for sanitization are left up to the Cognizant Security Authority . The Defense Security Service provides a Clearing and Sanitization Matrix (C&SM) which does specify methods . As of the June 2007 edition of the DSS C&SM, overwriting is no longer acceptable for sanitization of magnetic media; only degaussing or physical destruction is acceptable . </P>

Cognizant security agency (csa) in the nisp