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: [email protected]// POC/2/F. D. BAKER/GS-15/EXECDIR/MCESG/[email protected]// POC/3/J. COUTU/GS-14/BRANCH HEAD/MCSRB, PSD, TECOM/EMAIL: [email protected]// 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 [email protected] 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.//