Sandia National Laboratories

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SNL Security Contacts


Clearance Termination - A request to terminate a DOE security clearance.

This process has nothing to do with termination of a contract, only termination of the security clearance that DOE granted you. Completion of DOE F 5631.29, U.S. DOE Security Termination Statement is ONLY to terminate your security clearance and will not have an effect on your contract status.

An individual’s responsibility to protect classified and sensitive information continues long after he or she has separated from SNL, or no longer requires the security clearance. The DOE requires that a three-step process be followed for termination briefings and deactivating a clearance:

Forms Authorization and Process Submittal

DOE F 5631.29, Security Termination Statement and Security Termination Briefing (SEC225) (provided in one file)
What do the Termination Statement and Briefing cover?

  • Information listed in the SF-312, Classified Information sNondisclosure Agreement Form;
  • Penalties for unauthorized disclosure of classified information as specified in the Atomic Energy Act of 1954 and Title 18, U.S. Code; and
Penalties for unauthorized disclosure of Unclassified Controlled Nuclear Information.


Review the DOE F 5631.29, Security Termination Statement and Security Termination Briefing (SEC225) (provided in one file) with the terminating person.

  1. Have the person sign the Security Termination Statement. The Facility Security Officer, Company Official, or Sandia Manager may sign as the “Debriefing Official.”
  2. The individual may retain the Security Termination Briefing (SEC225) page.
  3. Return the following to Personnel Security:
Every effort should be made to obtain the individual’s signature. If this is not possible, provide on the completed but unsigned STS an explanation of the circumstances surrounding the termination and why the signature could not be obtained.


The signed U.S. DOE Security Termination Statement MUST be returned to one of the Personnel Security Offices listed below within 2 working days from the date of termination.
Sandia / New Mexico Personnel Security Clearance Office
Fax: (505) 844-9739 or
Sandia/California Visitor Control Office
Fax: (925) 294-1330 or
Clearance paperwork becomes Official Use Only (OUO) information when completed. OUO information must be encrypted with Entrust when transmitted over a network (including e-mail). Fax completed clearance paperwork if you do not have Entrust.

If unable to return Badge and form in person, please send via FedEx to the appropriate address.

When should the Security Termination Briefing be conducted?

  • On the person's last day worked, or
  • The last day it becomes known that the individual no longer requires access to classified information, classified matter, or special nuclear material.
  • Immediately upon becoming aware that the person is taking a leave of absence of 90 working days or more.

SF-4001-CSC, Contractor Separation Checkout Sheet
This optional form should be used when an individual is terminating employment. It provides guidance on notifications, time charging, security requirements, training, disposition of property and material, and records information relative to files, documents, computer and telecommunications deactivation, and ES&H.

Additional Information:

Proper Completion of Security Termination Statements:  When completing Security Termination Statements for submittal to DOE, please ensure the reason for termination is clear and provides the reason(s) for termination.  This will allow DOE to make any necessary determinations that may affect clearance eligibility.  For example, simply including “terminated” or “for cause” does not provide enough information to DOE for processing.  Please direct questions to Nick Atencio (505-844-4391, and Rob Ambrose (505-844-3081, in NM and Carol James (925-294-2061, in CA.

Sandia/New Mexico - Personnel Security Office

Location: Innovation Parkway Office Center (IPOC) Map
Customer Service Hours: Mon-Fri 7:15 a.m. - 3:00 p.m.
Information Line: 1-505-845-1321
Fax: (505) 844-9739
E-Mail Address:
Mailing Address: P.O. Box 5800, MS-1475, Albuquerque, NM 87185-1475

Sandia/California - Personnel Security Office

Location: Livermore, California
Customer Service Hours: Mon-Fri 7:00 a.m.- 4:00 p.m.
Information Line: (925) 294-2061
Fax: (925) 294-1330
E-Mail Address:
Mailing Address: P.O. Box 969, MS-9113, Livermore, CA 94551-9113