MOS 0399 Infantry Operations Chief
MOS 0399 Infantry Operations Chief
MOS Description
The Operations Chief is responsible to the commander and assists in all levels of planning, training, deployment and employment of MAGTF capabilities to include the integration and synchronization of the warfighting functions. Supervises and coordinates the preparation and assignment of personnel/equipment in accordance with the Table of Organization/Table of Equipment. He is responsible for the establishment, management, and operation of unit command and control.

National Certifications
You selected Early Career—this applies to Marines in paygrades E1-E3. To help you focus on the credentials most appropriate for early in your career, the National Certifications list below has been filtered to only show COOL-funded certifications that are related to Most or Some of the skills and training gained in your MOS. You can customize your search by clicking Select Filters at the top left of the credentials table or by using the keyword search at the top right of the table.
Obtaining credentials related to your MOS helps improve your professionalism and help prepare you for civilian employment when you do transition out.
Once you have found a credential you want to pursue and are eligible for, you can apply for a voucher for COOL funding to pay for the exam. Make sure to check to see that you meet the eligibility requirements for a voucher before you apply.
You selected Mid-Career—this applies to Marines in paygrades E4-E5. To help you focus on credentials most applicable to this phase in your career, the certification list has been filtered to only show COOL-funded certifications that are related to Most or Some of the skills and training gained in your MOS. You can customize your search by clicking Select Filters at the top left of the credentials table or by using the keyword search at the top right of the table.
Obtaining credentials related to your MOS helps improve your professionalism and helps prepare you for civilian employment when you do transition out.
Once you have found a credential you want to pursue and are eligible for, you can apply for a voucher for COOL funding to pay for the exam. Make sure to check to see that you meet the eligibility requirements for a voucher before you apply. The Marine Corps will not pay for exams if you have less than six months of service left so you'll want to plan accordingly.
You selected Late Career-- this applies to Marines in paygrades E6-E9. To help you focus on credentials most applicable to this phase in your career, the certification list has been filtered to only show COOL-funded certifications that are related to Most or Some of the skills and training gained in your MOS. You can customize your search by clicking Select Filters at the top left of the credentials table or by using the keyword search at the top right of the table.
Obtaining credentials related to your MOS helps improve your professionalism and help prepare you for civilian employment when you do transition out.
Once you have found a credential you want to pursue and are eligible for, you can apply for a voucher for COOL funding to pay for the exam. Make sure to check to see that you meet the eligibility requirements for a voucher before you apply. The Marine Corps will not pay for exams if you have less than six months of service left so you'll want to plan accordingly.
You chose Transitioning-- this applies to Marines who are not reenlisting and are planning their next steps. To help you focus on the most applicable credentials, the certification list has been filtered to only show in-demand credentials that are GI Bill approved. You can customize your search by clicking Select Filters at the top left of the credentials table or by using the keyword search at the top right of the table.
Obtaining a credential can help prepare you for civilian employment, and can demonstrate knowledge and skills in a way civilian employers understand. The Marine Corps will not pay for exams if you have less than six months of service left so you'll want to plan accordingly. If you are already within that six-month timeframe, you can still choose to pursue the credential yourself or explore other funding options to pay for credentials.
As a transitioning Marine, you may also want to visit the Marine Corps' Transition Readiness Program for other guidance regarding reentering the civilian workforce.
You chose Promotion-Seeking-- this applies to Marines who plan to stay in the Corps and who are actively working on advancement. To help you focus on the most applicable credentials, the certification list has been filtered to only show COOL-funded certifications that are related to Most or Some of the skills and training gained in your MOS. You can customize your search by clicking Select Filters at the top left of the credentials table or by using the keyword search at the top right of the table.
Obtaining credentials related to your rating helps improve your professionalism and help prepare you for civilian employment when you do transition out.
Once you have found a credential you want to pursue and are eligible for, you can apply for a voucher for COOL funding to pay for the exam. Make sure to check to see that you meet the eligibility requirements for a voucher before you apply. The Marine Corps will not pay for exams if you have less than six months of service left so you'll want to plan accordingly.
You chose Veteran-- veterans are any former Service member who has been discharged from active duty military service. To help you focus on the most applicable credentials, the certification list has been filtered to show in-demand credentials that are GI Bill approved. You can customize your search by clicking Select Filters at the top left of the credentials table or by using the keyword search at the top right of the table.
COOL does not pay for credentialing exams for veterans, but you may be able to get your credential funded through the GI Bill. Explore your funding options to see what funding may be available to you. Also, visit our page of Related Sites and expand the Resource Sites For Veterans section to see what other resources may be available to you
The following civilian credentials are related to MOS 0399 Infantry Operations Chief. These credentials may require additional education, training or experience. For more information about these credentials, click on the credential title below.
For additional credentials related to Free, Necessary, and Exception MOSs, go to the Collateral Duty search feature and explore more opportunities to get certified. (Click the Navigator icon on the upper-right corner of the screen, and then select "Collateral Duty/Out of Billet MOS" or "Go Back" and then "Collateral Duty/Out of Billet MOS"). Only Service members who hold a 03 Primary MOS and who are assigned in writing by their Commanding Officer or have attended related formal school training are eligible for collateral duty/billets.
For more supervisory and managerial credentials, please refer to the LEADER summary page.Compare | Credential | Agency | Related As | Attainability | COOL$ | GI Bill® | Accreditation | ID | |
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Certified Hazardous Materials Manager (CHMM)
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Institute of Hazardous Materials Management (IHMM) | ![]() |
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CompTIA Project+
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Computing Technology Industry Association (CompTIA) | ![]() |
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Certified Protection Professional (CPP) Is Not In Demand | ASIS International | ![]() |
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Certified Manager of Quality/Organizational Excellence (CMQ/OE)
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American Society for Quality (ASQ) | ![]() |
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Six Sigma Black Belt (CSSBB) Is Not In Demand | American Society for Quality (ASQ) | ![]() |
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Certified Association Executive (CAE) Is Not In Demand | American Society of Association Executives (ASAE) | ![]() |
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Certified Manager (CM)
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Institute of Certified Professional Managers (ICPM) | ![]() |
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Project Management Professional (PMP)
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Project Management Institute (PMI) | ![]() |
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Certified Corrections Officer (CCO) Is Not In Demand | American Correctional Association (ACA) | ![]() |
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Certified Jail Manager (CJM) Is Not In Demand | American Jail Association (AJA) | ![]() |
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Professional Certified Investigator (PCI) Is Not In Demand | ASIS International | ![]() |
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Physical Security Professional (PSP) Is Not In Demand | ASIS International | ![]() |
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Certified Corrections Manager (CCM) Is Not In Demand | American Correctional Association (ACA) | ![]() |
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Certified Corrections Supervisor (CCS) Is Not In Demand | American Correctional Association (ACA) | ![]() |
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Certified Corrections Executive (CCE) Is Not In Demand | American Correctional Association (ACA) | ![]() |
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Certified Associate in Project Management (CAPM)
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Project Management Institute (PMI) | ![]() |
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Certified Hazardous Materials Practitioner (CHMP) Is Not In Demand | Institute of Hazardous Materials Management (IHMM) | ![]() |
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Certified Jail Officer (CJO) Is Not In Demand | American Jail Association (AJA) | ![]() |
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Certified Corrections Officer/Provisional (CCO/P) Is Not In Demand | American Correctional Association (ACA) | ![]() |
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Security Program Integration Professional Certification (SPIPC) Is Not In Demand | Center for Development of Security Excellence (CDSE) | ![]() |
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Security Fundamentals Professional Certification (SFPC) Is Not In Demand | Center for Development of Security Excellence (CDSE) | ![]() |
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Security Asset Protection Professional Certification (SAPPC) Is Not In Demand | Center for Development of Security Excellence (CDSE) | ![]() |
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Certified Lean Six Sigma Black Belt (ICBB)
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International Association for Six Sigma Certification (IASSC) | ![]() |
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Certified Lean Six Sigma Green Belt (ICGB)
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International Association for Six Sigma Certification (IASSC) | ![]() |
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Certified Dangerous Goods Professional (CDGP) Is Not In Demand | Institute of Hazardous Materials Management (IHMM) | ![]() |
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Strategic Planning Professional Level I Is Not In Demand | Association for Strategic Planning (ASP) | ![]() |
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Strategic Management Professional Level II Is Not In Demand | Association for Strategic Planning (ASP) | ![]() |
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Industrial Security Oversight Certification (ISOC) Is Not In Demand | Center for Development of Security Excellence (CDSE) | ![]() |
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Physical Security Certification (PSC) Is Not In Demand | Center for Development of Security Excellence (CDSE) | ![]() |
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Certified Lean Six Sigma Yellow Belt (ICYB) Is Not In Demand | International Association for Six Sigma Certification (IASSC) | ![]() |
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Associate Professional in Human Resources (aPHR) Is Not In Demand | Human Resource Certification Institute (HRCI) | ![]() |
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Microsoft Office Specialist (MOS): Microsoft Office 2013 Is Not In Demand | Microsoft Corporation | ![]() |
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Microsoft Office Specialist (MOS): Microsoft Office 2016 Is Not In Demand | Microsoft Corporation | ![]() |
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Certified Correctional Trainer (CCT) Is Not In Demand | American Jail Association (AJA) | ![]() |
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Resilience-Building Leadership Professional (RBLP) Is Not In Demand | Resilience-Building Leader Program | ![]() |
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Resilience-Building Leadership Professional Coach (RBLP-C) Is Not In Demand | Resilience-Building Leader Program | ![]() |
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Resilience-Building Leadership Professional Trainer (RBLP-T) Is Not In Demand | Resilience-Building Leader Program | ![]() |
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Microsoft Office Specialist (MOS): Associate (Office 365 and Office 2019) Is Not In Demand | Microsoft Corporation | ![]() |
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Microsoft Office Specialist (MOS): Excel Associate (Excel and Excel 2019) Is Not In Demand | Microsoft Corporation | ![]() |
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Microsoft Office Specialist (MOS): Microsoft Excel 2016 Is Not In Demand | Microsoft Corporation | ![]() |
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Microsoft Office Specialist (MOS): Microsoft Excel 2016 Expert Is Not In Demand | Microsoft Corporation | ![]() |
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Microsoft Office Specialist (MOS): Microsoft Excel Expert (Excel and Excel 2019) Is Not In Demand | Microsoft Corporation | ![]() |
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Microsoft Office Specialist (MOS): Microsoft Access 2016 Is Not In Demand | Microsoft Corporation | ![]() |
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Microsoft Office Specialist (MOS): Microsoft Outlook 2016 Is Not In Demand | Microsoft Corporation | ![]() |
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Microsoft Office Specialist (MOS): Microsoft PowerPoint 2016 Is Not In Demand | Microsoft Corporation | ![]() |
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Microsoft Office Specialist (MOS): Microsoft Word 2016 Is Not In Demand | Microsoft Corporation | ![]() |
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Microsoft Office Specialist (MOS): Microsoft Word 2016 Expert Is Not In Demand | Microsoft Corporation | ![]() |
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Microsoft Office Specialist (MOS): Microsoft Word Associate (Word and Word 2019) Is Not In Demand | Microsoft Corporation | ![]() |
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Microsoft Office Specialist (MOS): Microsoft Word Expert (Word and Word 2019) Is Not In Demand | Microsoft Corporation | ![]() |
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Microsoft Office Specialist (MOS): PowerPoint Associate (PowerPoint and PowerPoint 2019) Is Not In Demand | Microsoft Corporation | ![]() |
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Microsoft Office Specialist (MOS): Outlook Associate (Outlook and Outlook 2019) Is Not In Demand | Microsoft Corporation | ![]() |
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Microsoft Office Specialist (MOS): Microsoft Access Expert (Access and Access 2019) Is Not In Demand | Microsoft Corporation | ![]() |
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Department of Defense (DoD) Certifications
Some of these credentials may be funded thru the Marine Corps COOL program. To find out, search for these credentials in the "National Certifications" tab and look for the icon.
Security Professional Education Development (SPeD) Program
The SPeD Certification Program is part of the Department of Defense's (DoD) initiative to professionalize the security workforce. This initiative is intended to ensure that there is a common set of competencies among security practitioners that promotes interoperability, facilitates professional development and training, and develops a workforce of certified security professionals.
For additional information related to the SPeD Certification Program please visit the website.
State Licenses
Some states have specific licensing requirements for the following related civilian occupations. These state licenses may require additional education, training or experience. Click on the occupation below to get more information on state requirements from the U.S. Department of Labor. For more supervisory and managerial occupations, please refer to the LEADER summary page.
- Construction Laborers
- Correctional Officers and Jailers
- General and Operations Managers
- Hazardous Materials Removal Workers
- Operating Engineers and Other Construction Equipment Operators
- Police and Sheriff's Patrol Officers
- Private Detectives and Investigators
- Probation Officers and Correctional Treatment Specialists
- Security Guards
Related Civilian Occupations
The following civilian occupations are similar to the duties performed by MOS 0399 Infantry Operations Chief. These occupations may require additional education, training or experience. For more information about these occupations, click on the civilian occupation below. For more supervisory and managerial positions, please refer to the LEADER summary page. To search for related civilian job opportunities, go to the Veteran’s Employment Center.
Civilian Job | Duties Matched | Bright Outlook | Registered Apprenticeship | Local Salary Info | |
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Bailiffs |
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Construction Laborers |
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Correctional Officers and Jailers |
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Emergency Management Directors |
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Explosives Workers, Ordnance Handling Experts, and Blasters |
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First-Line Supervisors of Correctional Officers |
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First-Line Supervisors of Police and Detectives |
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General and Operations Managers |
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Hazardous Materials Removal Workers |
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Operating Engineers and Other Construction Equipment Operators |
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Police and Sheriff's Patrol Officers |
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Private Detectives and Investigators |
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Probation Officers and Correctional Treatment Specialists |
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Security Guards |
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Surveying and Mapping Technicians |
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Transit and Railroad Police |
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Transportation Security Screeners |
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Transportation, Storage, and Distribution Managers |
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The following federal occupations are similar to MOS 0399 Infantry Operations Chief. These occupations may require additional education, training or experience. For more information about these occupations, click on the federal occupation below.
In addition to obtaining certifications in your field, advanced education is another way to enhance job performance.
For help in making informed choices on schools and education programs when using tuition assistance, see: