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CHAPTER 8
SECURITY
A security clearance is a determination,
made from all available information, that an
individual is eligible for access to classified
information to a specified level or, in some
cases, is eligible for assignment to other
positions of trust.
The clearance tells you
someone is eligible for access; it does not
give that person access authorization. It is
important to separate these two processes:
granting clearance and granting access. An
individual may remain eligible for access even
though the person’s present position does not
require access to classified information.
No person will be given access to
classified information unless a favorable
determination has been made of the person’s
loyalty, reliability, and trustworthiness. The
initial determination is based on a personnel
security
investigation (PSI).
Only
commanders, commanding officers (COs),
chiefs of recruiting stations, and the Director
of Central Adjudication Facility are authorized
to request PSIs on personnel under their
jurisdiction.
The Defense Investigative Service (DIS)
or, where specified, the Office of Personnel
Management (OPM) conducts or controls all
PSIs for the Department of the Navy.
Requests for PSIs must be kept to the
absolute minimum.
They will not be
submitted on any
civilian
or military
personnel who will retire, resign, or separate
with less than 9 months of service remaining.
TYPES OF PERSONNEL SECURITY
INVESTIGATIONS
A personnel security investigation (PSI) is
an inquiry into an individual’s activities; it is
used for the specific purpose of making a
personnel
security
determination.
Investigations such as those conducted for
current
criminal
activity,
espionage,
compromise, or subversion have an impact on
employment, clearance, or assignment, but are
not classified as PSIs.
PSIs fall into one of the following
categories: national agency check (NAC),
background
investigation (Bl), special
background investigation (SBI), and periodic
reinvestigation (PR).
NATIONAL AGENCY CHECK
An NAC is a search of the files of federal
agencies for information about the person
being investigated; the DIS conducts the
check. An NAC includes, as a minimum, a
check of the Defense Clearance and
Investigations Index (DCII) and the FBI files.
If either of those checks reveals information
that warrants further study, the DIS checks the
files of other agencies.
A person who wishes to enter military
service
undergoes an
entrance NAC
(ENTNAC). The ENTNAC determines the
suitability of an individual for entry into the
service.
The following documents are required to
process an NAC:
l An original and one copy of the
Personnel Security Questionnaire, DD 398-2
l An original and one copy of the
Applicant Fingerprint Card, FD 258
Step-by-step
i n s t r u c t i o n s f o r t he
completion of these documents are contained
in chapter 21 of the Department of the Navy
Information and Personnel Security Program
Regulation Manual, OPNAVINST 5510.1.
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