b. The nature of the emergency; that is, whether it is of human origin or natural causes.
c. The seriousness of the emergency.
d. The capability and availability of logistical support. The material's bulk and weight are the primary
e. Emergency storage. This is not an option when under the threat of an enemy attack. In this situation
the necessary destruction plan is begun.
Emergency destruction. The commander selects emergency destruction for a facility. His decision is
based on a comprehensive threat assessment, the facility's condition, and available destruction facilities. The
three major areas of interest in emergency destruction are the priorities, the methods, and the destruction records.
a. There are nine priorities of cryptomaterial destruction. These priorities are listed in descending order
(1) Superseded and current classified keying material marked CRYPTO. These are given the highest
(2) Superseded, current, and future card reader insert boards (CRIB).
(3) TOP SECRET multiholder key that becomes effective within the next 30 days.
(4) Superseded tactical operations codes.
(5) SECRET and CONFIDENTIAL multiholder key that becomes effective within the next 30 days.
(6) Sensitive pages of crypto equipment manuals or the complete manual.
(7) CLASSIFIED elements or subassemblies of COMSEC equipment in the order listed in the
(8) The balance of COMSEC equipment maintenance manuals and classified operating instructions.
(9) Any remaining classified COMSEC material and unclassified keying material marked CRYPTO.
Superseded authenticators and unused two-copy (point-to-point) key are destroyed if time permits.
b. Destruction must render COMSEC equipment unusable and nonrepairable. The means and methods
to do this vary, depending on what is being destroyed.