[Code of Federal Regulations]
[Title 10, Volume 4]
[Revised as of January 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 10CFR1016.21]

[Page 785]
 
                            TITLE 10--ENERGY
 
          CHAPTER X--DEPARTMENT OF ENERGY (GENERAL PROVISIONS)
 
PART 1016_SAFEGUARDING OF RESTRICTED DATA--Table of Contents
 
Sec.  1016.21  Protection of Restricted Data in storage.

    (a) Persons who possess Restricted Data pursuant to an Access Permit 
shall store Secret and Confidential documents and material when not in 
use in accordance with one of the following methods:
    (1) In a locked vault, safe, or safe-type steel file cabinet having 
a 3-position dial-type combination lock; or
    (2) In a dual key, bank safety deposit box; or
    (3) In a steel file cabinet secured by a steel lock bar and a 3-
position dial-type changeable combination padlock; or
    (4) In a locked steel file cabinet when located in a security area 
established under Sec.  1016.23 or when the cabinet or the place in 
which the cabinet is located is under DOE-approved intrusion alarm 
protection.
    (b) Changes of combination: Each permittee shall change the 
combination on locks of his safekeeping equipment whenever such 
equipment is placed in use, whenever an individual knowing the 
combination no longer requires access to the repository as a result of 
change in duties or position in the permittee's organization, or 
termination of employment with the permittee or whenever the combination 
has been subjected to compromise, and in any event at least once a year. 
Permittees shall classify records of combinations no lower than the 
highest classification of the documents and material authorized for 
storage in the safekeeping equipment concerned.
    (c) The lock on safekeeping equipment of the type specified in 
paragraph (a)(4) of this section shall be replaced immediately whenever 
a key is lost.