R 141800Z APR 25
MARADMIN 193/25
MSGID/GENADMIN/CG TECOM QUANTICO VA //
SUBJ/CREATION OF AND SOLICITATION FOR QUALIFIED MARINES FOR LATERAL
MOVE INTO THE CAREER DETACHMENT COMMANDER PRIMARY MOS 8157//
REF/A/NAVMC 1200.1L/7 MAR 25//
REF/B/NAVMC 3500.132/9 JUN 23//
REF/C/MCO 1326.6/11 MAY 21//
REF/D/MEMO/5311 C06/16 JAN 25//
NARR/REFERENCE A IS THE FY 26 MILITARY OCCUPATIONAL SPECIALTIES
(MOS) MANUAL. REFERENCE B IS THE MOS MANUAL PROGRAM GUIDANCE.
REFERENCE C IS THE SELECTING, SCREENING, AND PREPARING ENLISTED
MARINES FOR SCREENABLE BILLETS AND INDEPENDENT DUTY ASSIGNMENTS
MANUAL (SCREENMAN). REFERENCE D IS FORCE STRUCTURE DECISION
MEMORANDUM: CREATION OF PRIMARY MILITARY
OCCUPATIONAL SPECIALTY 8157 CAREER DETACHMENT COMMANDER//
POC/1/J. W. WAGNER/MSGT/MSG SCHOOL/MCESG/TEL:707-847-8156/EMAIL:
WAGNERJW@STATE.GOV//
POC/2/F. D. BAKER/GS-15/EXECDIR/MCESG/FRANKLIN.BAKER@USMC.MIL//
POC/3/J. COUTU/GS-14/BRANCH HEAD/MCSRB, PSD, TECOM/EMAIL:
JAY.COUTU@USMC.MIL//
GENTEXT/REMARKS/1.  The purpose of this MARADMIN is to announce the
creation, requirements, application procedures, and solicitation for
qualified Marines to lateral move (LatMov) into Primary MOS (PMOS)
8157, Career Detachment Commander (DetCdr).  The demand and desire
for qualified Marines to LatMov into the 8157 PMOS will remain high
for the foreseeable future.
2.  Background.  This change was thoroughly reviewed by the
Doctrine, Organization, Training and Education, Material, Leadership
and Communication, Personnel, Facilities, and Cost Working Group
(DOTMLPF-C WG, (DWG)).  After DWG review and approval by Deputy
Commandant (DC) Combat Development and Integration (CD&I), reference
(d) directed Commanding Officer, Marine Corps Embassy Security Group
(MCESG) to coordinate with Commanding General (CG), Training and
Education Command (TECOM) to create PMOS 8157, with an out of cycle
change to reference (a).
2.a.  This action is required to facilitate the selection of LatMov
personnel to ensure their ability for assignment in FY 2027 as
described in paragraph 6.b.
2.b.  The changes communicated in paragraph 3 of this DC CD&I, DC
Manpower and Reserve Affairs (M&RA), and CG TECOM coordinated
MARADMIN will be included in the FY 2027 MOS Manual that will
become effective 1 Oct 2026 (FY27).
3.  MOS 8157, Career Detachment Commander, (GySgt to MGySgt) PMOS
3.a.  Summary.  Career Detachment Commanders (DetCdr) are high
performing Marine Security Guard (MSG) staff non-commissioned
officers (SNCO) who are assigned to Marine Corps Embassy Security
Group (MCESG) who are subject matter experts and will serve to
establish a cadre of professional MSGs with long-term assignments in
critical, operational, and managerial billets to improve the
operations, training, readiness, and effectiveness of the command.
These include DetCdr billets at critical U.S. diplomatic posts
overseas or those in direct support/liaison to the Department of
State, Instructor/Advisor at MSG School, and Operations, Training,
Screening, and Assignment chiefs.  Career DetCdrs can anticipate
successive three-year tours in these key billets.  Assignment of
Career DetCdr is determined by the needs of MCESG.  Gunnery
Sergeants serving as Career DetCdrs may be considered for promotion
to Master Sergeant and First Sergeant.
3.b.  Prerequisites
3.b.(1) Meet requirements listed in the current edition of MCO
1326.6 Chapter 4.
3.b.(2) Completion of the MSG DetCdr Course (CID:  M0258L7) must be
reflected on individual’s 3270, TEDU screen as “58L Detachment
Commander”
3.b.(3) Successful completion of a previous 8156 MSG DetCdr tour
with awarding of the MSG Ribbon or be currently serving as an 8156
MSG DetCdr with at least 24 months of experience and must have
received Mission Capable ratings on all detachment semi-annual
inspections.
3.b.(4) Must be a SNCO who has not been passed for promotion twice
or is not within five years of service limitation.
3.b.(5) Must comply with MCESG grooming standards (MCESG GruO
1020.1)
3.b.(6) Have not been the subject of any 6105 counseling, NJP,
courts martial or civilian legal action in grade.
3.b.(7) No mental health or chronic medical diagnoses that will
restrict or limit permanent or temporary assignments to overseas
locations that do not have adequate medical support.
3.b.(8) Must have or have had an active adjudicated Top-Secret
security clearance with SCI eligibility.
3.b.(9) Must be a volunteer.  Marines interested in applying for the
PMOS 8157 should initiate a Reenlistment, Extension, Lateral Move
(RELM) application with their local Career Retention Specialist.
All RELM must include a letter of recommendation from a former or
current Commanding Officer or Officer-in-Charge of one of the MCESG
levels of Command/school.
3.b.(10) Must pass an interview with the Career Detachment Commander
Selection Board consisting of the MCESG Executive Director, MCESG
Sergeant Major, and MCESG Psychologist or their delegates.
3.c.  Requirements
3.c.(1) Regardless of MOS, awarding of 8157 requires the above
prerequisites to be met and receive a favorable endorsement from the
selection board that recommends approval for lateral move.
3.c.(2) Commander, Marine Corps Embassy Security Group is the
awarding authority for PMOS 8157.
3.d.  Duties.  For a complete listing of duties and tasks, refer to
the MCESG Training and Readiness (T&R) Manual.
3.e.  Related Standard Occupational Classification (SOC) Title and
Code.  Security Guards 33-9032.
3.f.  Related Military Skills
3.f.(1) Marine Security Guard Detachment Commander, 8156; Marine
Security Guard, 8156; Formal School Instructor, 0951.
4.  Interested Marines should review the references and contact the
listed POC (POC 1) after reading this MARADMIN in its entirety.
Additional information can be requested by sending an email to
8157PMOS@GROUPS.STATE.GOV or calling (804) 491-8157.
5.  The initial cohort of LatMov to PMOS 8157 will be conducted in
two phases.  Phase I of the LatMov to PMOS 8157 will focus on
Marines who are currently serving in 8156 DetCdr positions with
MCESG.  Phase II will facilitate LatMov requests for Marines
assigned to Units outside MCESG.
5.a.  Marines should contact their unit Career Planner to initiate
the LatMov process.
5.b.  Marines requesting a lateral move must attend a, MCESG funded,
in-person interview at MCESG HQ in Quantico, VA.  If this is not
possible due to the location of the applicant or mission
requirements of the applicant’s unit, a video conference will meet
this interview requirement.
5.c.  Upon completion of the interview, Marines will receive a
letter within five (5) working days stating recommendation status
From MCESG.  If favorably endorsed, the letter will be included in
The LatMov package.
6.  Submission Timeline:
6.a.  Phase I submission for FY26 LatMov will begin 15 April 2025
and remain open until 30 April 2025. All LatMov packages will be
routed to Commander, MCESG for screening and scheduling of
interviews between 1 May 2025 and 20 May 2025. Favorably endorsed
packages will be submitted via the Total Force Retention System
(TFRS) to MMEA by 31 May 2025 for routing and final decision.
6.b.  Marines approved for LatMov by MMEA during Phase I will be
assigned the Intended MOS (IMOS) of 8157 and remain with MCESG until
the awarding of the PMOS in FY27.
6.c.  Phase II submission for FY 26 will begin 1 June 2025 and will
remain open until 31 December 2025.  All Phase II LatMov packages
will be routed through the existing Chain of Command and submitted
via TFRS for adjudication by MMEA.  If conditionally approved for
LatMov, MMEA-25 will notify MCESG that a package has been approved,
and Marines will be identified as “Interview Required.”  Interviews
will be scheduled by MCESG with the individual Marine NLT 15 January
2026.  Interviews will be conducted as stated in paragraph 5.b.
between 1 February 2026 and 20 February 2026.  Final decision from
the MCESG selection board will be made NLT 1 March 2026 and sent to
the Marine for their records and MMEA for final approval and action.
6.d.  If selected during Phase II, Marines will be assigned the
Intended MOS (IMOS) of 8157 and remain with their parent command
until the PMOS is effective in FY27.  Subsequent orders to MCESG HQ
will be issued between 1 April to 30 April 2026 with an execution
window in FY27.
7.  Marines who are approved for LatMov should expect orders to MSG
School for duty as an Instructor/Advisor or other CONUS based
positions for a period no less than 24 months before being assigned
to an overseas DetCdr position.
8.  This MARADMIN is not applicable to Reserve Marines.
9.  Release authorized by LtGen Benjamin T. Watson, Commanding
General, TECOM.//