11 October 1997
Source: http://www.hqmc.usmc.mil/direct/AKAPBEDF.txt

For related documents see: http://www.hqmc.usmc.mil/direct/dir2000.htm

                                                        MCO 2201.1
                                                        CCTO-626-dlg
                                                        9 Sep 1983

    MARINE CORPS ORDER 2201.1

    From:  Commandant of the Marine Corps
    To:    Distribution List

    Subj:  Communications Security (COMSEC)

    Ref:   (a) CMS-4K
           (b) CSP-1
           (c) NTP-7
           (d) OPNAVINST 05510-93D (NOTAL)
           (e) MCO 1510.2H

    Encl:  (1) COMSEC DEFINITIONS

    1.  Purpose.  To prescribe Marine Corps Communications Security
    (COMSEC) policy.

    2.  Scope.  This Order promulgates information derived from
    national, Department of Defense and Navy COMSEC doctrine and policy
    and establishes Marine Corps COMSEC policy.

    3.  Background.  The security of governmental telecommunications
    is a national responsibility.  All military services must satisfy
    the Communications Security requirement of the National Security
    Council (NSC).  The Marine Corps works in consonance with the
    Department of the Navy to attain this goal.  This Order will
    formalize the Marine Corps direction and policy as it pertains to
    COMSEC.

    4.  Information

        a.  The National Communications Security Committee (NCSC) is
    the U.S. Government's authority for promulgation of policy and
    guidance on COMSEC.  Under NCSC policy, and in collaboration with
    the departments and agencies of the U.S. Government, the National
    Security Agency (NSA) develops and promulgates guidance on control
    of COMSEC material.

        b.  The Secretary of Defense (SecDef) is the U.S. Government's
    Executive Agent for COMSEC.  The Director, NSA acts for the SecDef
    in all COMSEC matters concerned with the security of governmental
    telecommunications.

        c.  The Chief of Naval Operations (CNO) is the overall
    authority for COMSEC policy within the Department of the Navy.

                                                   PCN 102 028151 00
    MCO 2201.1
    9 Sep 1983

    The Commander, Naval Security Group (COMNAVSECGRU) administers the
    Navy COMSEC program.  The Commander, Naval Telecommunications
    Command (COMNAVTELCOM) is the manager for COMSEC equipment, related
    devices, equipment maintenance manuals and operating instructions.
    The Director, Communications Security Material System (DCMS) is
    responsible for ensuring the proper security, distribution,
    handling, and accounting of COMSEC material in the COMSEC Material
    System.

        d.  The Director, Command, Control Communications and Computer
    Systems Division (DirC4SysDiv) (CMC (Code CCT)) has overall
    authority for COMSEC policy within the Marine Corps.  The Marine
    Corps conforms to all COMSEC related directives originated by the
    organizations listed in subparagraphs 4a through c above.

    5.  Policy

        a.  The COMSEC goal of the Marine Corps is to provide total
    security for all transmitted information from the originator to the
    recipient in accordance with references (a) through (d).

        b.  The Marine Corps will use DCMS procedures in handling and
    accounting of Communications Security Material System (CMS)
    material.  Only properly trained personnel will handle CMS
    material.  Specific guidance may be found in references (a), (b),
    and (c).

        c.  Operation of CMS accounts is a command responsibility.  The
    CMS custodian acts in behalf of the commander.  Only individuals
    who have completed a DCMS administered CMS formal school will be
    assigned as CMS custodians.

        d.  CMS violations are serious.  Repeated or flagrant CMS
    violations may warrant administrative and/or disciplinary action.

        e.  Commercially developed privacy equipment using the Data
    Encryption Standard (DES) will not be used except as approved by
    CMC (Code CCT).  Use of DES equipment by Fleet Marine Force units
    is not anticipated.

        f.  Access to COMSEC equipment, keying materials and
    maintenance manuals will be on a strict need-to-know basis.

    6.  Action

        a.  Commanders will be guided by the following principles:

            (1) COMSEC will be considered during all phases of
    operational planning.

                                    2                     MCO 2201.1
                                                           9 Sep 1983

            (2) Only cryptographic equipment, authentication systems
    or keying material produced or approved by the Director, NSA will
    be employed in the Marine Corps.

            (3) Homemade codes will not be used.

            (4) Marine Corps telecommunications centers, signal
    intelligence facilities, word processing and automated data
    processing facilities will comply with TEMPEST policies contained
    in reference (d).  Requests for TEMPEST surveys will be forwarded
    to COMNAVTELCOM via the chain of command (info CMC (Code CCT)) in
    accordance with instructions contained in reference (d).

            (5) Tactical communications circuits will be secured to the
    maximum extent possible, consistent with availability of COMSEC
    equipment.

            (6) Daily changing frequencies and call signs will be used
    to the maximum extent possible.  Static tactical call signs and
    fixed suffixes will be used only when operational considerations
    override the use of daily changing call signs.

            (7) Physical security of COMSEC material will be
    emphasized.

            (8) Emphasis will be placed on COMSEC in unit training.
    At a minimum the Essential Subject Test, Section II, Security of
    Military Information, will be part of unit training.

            (9) CMS insecurities will be reported in accordance with
    reference (a).

        b.  CG, FMFLANT and CG, FMFPAC will ensure CMS inspections of
    subordinate commands are conducted in accordance with reference
    (b).

        c.  The Director, Command, Control, Communications and Computer
    Systems Division (Code CCT) has general staff responsibility for
    the development of concepts, estimates, plans and overall Marine
    Corps requirements concerning COMSEC.  In the discharge of these
    duties, the DirC4SysDiv (Code CCT) will:

            (1) Monitor telecommunications plans to ensure compliance
    with established COMSEC policies and standards.

            (2) Set priorities for distribution of COMSEC equipments.

                                            3MCO 2201.1
    9 Sep 1983

            (3) Serve as the Headquarters staff agency for coordination
    with the Office of the Secretary of Defense, the Office of the
    Joint Chiefs of Staff, NSA and other military services on COMSEC
    matters.

            (4) Identify and validate Marine Corps COMSEC equipment
    requirements to CNO.

            (5) Ensure that CMS inspections of HQ FMFLANT, HQ FMFPAC,
    Marine Corps bases and stations and other commands which report
    directly to Headquarters Marine Corps are performed in accordance
    with reference (a).

            (6) Evaluate reports of CMS violations.

            (7) Prescribe Marine Corps procedures for handling COMSEC
    material.

            (8) Prescribe Marine Corps procedures for use of DES
    equipment.

        d.  The Deputy Chief of Staff for Installations and Logistics
    (DC/S I&L) (CMC (Code L)) has general staff responsibility for the
    development and supervision of the Marine Corps logistics system
    with regard to COMSEC materials and supplies.  The DC/S I&L will:

            (1) Develop logistics policies, including Integrated
    Logistics Support concepts, procedures, and guidance for
    distribution, supply and maintenance of COMSEC equipment
    ancillaries used in support of Marine Corps telecommunications
    systems.

            (2) Assist the DirC4SysDiv in identifying and validating
    program and budget requirements in support of COMSEC logistics
    functions.

        e.  The Deputy Chief of Staff for Training (DC/S Trng) (CMC
    (Code T)) has general staff responsibilities for the development
    of policies and programs for the training and education of Regular
    and Reserve Marine Corps personnel and units.  As this relates to
    COMSEC, DC/S Trng will:

            (1) Formulate, develop and publish individual and
    collective COMSEC training standards for use in Marine Corps units
    and training institutions.

            (2) Determine COMSEC training support requirements and
    allocate resources to satisfy those requirements.

                                    4                MCO 2201.1
                                                      9 Sep 1983

    7.  Reserve Applicability.  This Order is applicable to the Marine
    Corps Reserve.

                                           PAUL D. SLACK
                                           Director, Command, Control,
                                           Communications and Computer
                                           (C4) Systems Division

    DISTRIBUTION:  IV7

         Copy to:  8145001

                 Reprinted for stock 2 October 1987.

                                            4             MCO 2201.1
                                                           9 Sep 1983

                           COMSEC DEFINITIONS

        a.  Communications Security (COMSEC) -  The protection
    resulting from all measures designed to deny unauthorized persons
    information of value which might be derived from the possession and
    study of telecommunications, or to mislead unauthorized persons in
    their interpretation of the results of such possession and study.
    COMSEC includes; cryptosecurity, transmission security, emission
    security, and physical security of communications security material
    and information.

            (1)  Cryptosecurity - The component of communications
    security which results from the provision of technically sound
    cryptosystems and their proper use.

            (2)  Transmission Security - The component of
    communications security Which results from all measures designed
    to protect transmission from interception and exploitation by means
    other than cryptoanalysis.

            (3)  Emission Security - The component of communications
    security which results from all measures taken to deny unauthorized
    persons information of value which might be derived from intercept
    and analysis of compromising emanations from cryptoequipment and
    telecommunication systems.

            (4)  Physical Security - The component of communications
    security which results from ail physical measures necessary to
    safeguard classified equipment, material, and documents from access
    thereto or observation thereof by unauthorized persons.

        b.  Communications Security Equipment - Equipment designed to
    provide security to telecommunications by converting information
    to a form unintelligible to an unauthorized interceptor and by
    reconverting such information to its original form for authorized
    recipients as well as equipment designed specifically to aid in,
    or as an essential element of, the conversion process.
    Communications security equipment is cryptoequipment,
    cryptoancillary equipment, cryptoproduction equipment and
    authentication equipment.

        c.  Communications Security Material - All documents, devices,
    equipment, or apparatus, including cyrptomaterial, used in
    establishing or maintaining secure communications.

                                                        ENCLOSURE (1)
                                            1MCO 2201.1
    9 Sep 1983

        d.  Telecommunications - Any transmission, emission, or
    reception of signs, signals, writing, images, and sounds or
    information of any nature by wire, radio, visual, or other
    electromagnetic systems.

        e.  CRYPTO - A marking identifying all COMSEC keying material
    used to protect or authenticate telecommunications carrying
    national security-related information.  The CRYPTO marking also
    identifies COMSEC equipment with installed, hardwired, operational
    keying variables.

        f.  Data Encryption Standard (DES) - An unclassified
    cryptoalgorithm published by the National Bureau of Standards for
    the protection of certain U.S. Government information.

    ENCLOSURE (1)

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