Classified Media Destruction Guidance (NSA Page)
https://www.nsa.gov/resources/media-destruction-guidance/
Contains guidance and information relating to the disposal or recycling of media devices per NSA/CSS Policy Statement 9-12, "NSA/CSS Storage Device Sanitization". Information stored on these devices may range from UNCLASSIFIED to TOP SECRET and may include compartmented, sensitive, or limited-distribution material.
NSA Classified Materiel Conversion (NSA Page)
https://www.nsa.gov/Resources/NSA-Classified-Materiel-Conversion-CMC/
NSA/CSS accomplishes disposition of classified materiel by using standard industrial conversion or approved destruction methods through numerous recycling and reclamation procedures in strict accordance with environmental, safety, and security standards.
The CMC is responsible for the secure collection, processing, destruction and conversion of acceptable classified materiel.