Marine Corps Reserves Individual Mobilization Augmentee (IMA)

Written by Kevin Webb

What is the Marine Corps IMA?

One of the least understood opportunities in the Marine Corps is the Individual Mobilization Augmentee Detachment  more likely to be referred to as IMA or IMA Det. In basic terms, the Marine Corps IMA allows for an individual Marine to be sub-contracted, so to speak, to various commands and organizations. You are still a Marine, but you will be fulfilling duties based on the needs of the command or organization you’re attached to even if it is not a Marine Corps detachment.  You can view all of the Marine Corps commands and organizations at the end of this article. The 2013 fiscal year allows for a total of 3,117 Marine IMA personnel which is made up of 1,714 officers and 1,403 enlisted Marines. You can read more details here.

My experience in the Marine Corps IMA may be unique to other Marine’s experience being that I’m a reservist, but I will do my best to shed as much light on it as possible in case you are seeking an opportunity to become an IMA yourself. This will be an ongoing article that I will continue to add to as I receive questions and comments.

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Marine Corps IMA Pros and Cons

The Marine Corps is full of opportunities, and like most of them, they are accompanied by unique aspects that often prove very enjoyable, as well as less than ideal aspects that may leave more to be desired.

If you get attached to a joint unit such as I am, you will have the opportunity to work with all branches of the military, along with other government organizations. This can serve as both a pro and a con. The good part is that joint experience is extremely valuable in this day in age, and it can serve as a nice bullet on a military or civilian resume. The down-side is that other branches offer a much more lax environment, and with little oversight, it takes a lot of discipline to not lower your standards while in a joint environment. And please do not misunderstand me. I’m not saying that other branches are bad, but there are some very distinct differences that set Marines apart, and it can be easy to let certain disciplines fall by the wayside.

Some of the difficulties in being part of the IMA are branch support. You have to be self-reliant and self-sufficient to be in the IMA. At least in my case, there is not a ton of support for simple things like scheduling medical, getting awards approved, scheduling ATs, running PFTs and CFTs, just to name a few. I am responsible for doing all of that on my own, and mostly on my own time. I am lucky enough to have a local Marine reserve unit that I can piggy-back off for CFTs and PFTs, and sometimes I am able to piggy-back their medical scheduling. If it were not for them, taking care of some of these basic items would be much more challenging.

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Marine Corps IMA Commands & Organizations List

1ST MARINE AIRCRAFT WING – 1MAW
I MEF – 1MEF
MAGTF-TC – 29PA
2ND MARINE AIRCRAFT WING – 2MAW
II MEF 2MEF
3RD MARINE AIRCRAFT WING – 3MAW
III MEF – 3MEF
US AFRICA COMMAND – ACOM
DC, AVIATION – AVIA
MCAS BEAUFORT SC – BFRT
NAVAL CONSTRUCTION DIV – CBEE
US CENTRAL COMMAND – CCOM
MCAS CHERRY POINT NC – CHPT
JOINT STAFF NORTH – CJCS
RSU/DPC CPCA – CPEN
DEPUTY ASST SECNAV(RA) – DASN
DEFENSE INTEL ACTIVITY – DIAJ
DEFENSE LOGISTICS AGENCY – DLOG
US EUROPEAN COMMAND – ECOM
MARINE FORCES AFRICA – FAFR
MARINE FORCES CENTRAL – FCEN
MARINE FORCES COMMAND – FCOM
MARINE FORCES EUROPE – FEUR
MARINE FORCES KOREA – FKOR
MARINE FORCES NORTH – FNOR
MARINE FORCES PACIFIC – FPAC
MARINE FORCES SOUTH – FSOU
2ND MAW HMT 302 – H302
3RD MAW HMLAT 303 – H303
HQMC, C4 – HQC4
HQMC, INSPECTOR GENERAL – HQIG
DC, I AND L – HQIL
HQMC, INTEL DIVISION – HQIN
HQMC, MI DIVISION – HQMI
HQMC, MANPOWER PLANS – HQMP
HQMC, PUBLIC AFFAIRS – HQPA
DC, P AND R – HQPR
HQMC, RESERVE AFFAIRS – HQRA
IMA PM – IMAP
JOINT STAFF SOUTH – JCOM
JOINT COMM SUPPORT ELEMENT – JCSE
JOINT ENABL CAPABILITIES CMD – JECC
JOINT INTEL CENTER-PAC – JICP
MCB/MCAS KANEOHE BAY – KBAY
MCI-EAST – LEJE
MARINE CORPS LOG CMD – LOGC
LEGAL SERVICES SUPPORT – LSSS
MARINE FOR LIFE – M4LP
MCAF QUANTICO – MCAF
MCB CAMP BUTLER – MCBB
MCB CAMP LEJEUNE – MCBE
DC, CD AND I – MCDC
MARINE CORPS INFO OPS CTR – MCIO
MARINE CORPS INTEL SCHOOL – MCIS
MCI-WEST – MCIW
MCLB ALBANY – MCLA
MCLB BARSTOW – MCLB
MARINE CORPS LIAISON OFFICE – MCLO
MARINE CORPS RECRUITING CMD – MCRC
MARINE CRYPTO SUPPORT BN – MCSB
MARINE FORCES CYBER – MFCY
MARINE FORCES RESERVE – MFR1
MOBILIZATION SUPPORT TEAM – MOST
MARDET NAS PATUXENT, MD – MPAX
MARINE CORPS SECTY COOP GRP – MSCG
MARSOC – MSOC
NAVSUP WEAPONS SYS SUPP – NAVI
US NORTHERN COMMAND – NCOM
NATIONAL DEFENSE UNIV – NDUW
NAVAL EXP LOG SUPPORT – NELS
MCAS NEW RIVER NC – NRIV
OFFICE OF LEGISLATIVE AFF – OLAF
US PACIFIC COMMAND – PCOM
DC, PP AND O – PPOO
PEACTIME WARTIME SUPPORT – PWST
MCRD PARRIS ISLAND – RDPI
MCRD SAN DIEGO – RDSD
RSU MIRAMAR – RSAW
READINESS SUPPORT PRGM – RSPP
RESERVE STAFF TRNG PRGM – RSTP
RSU CLNC – RSUE
RESERVE TRANSITION/RETEN PRGM – RTRP
US SOUTHERN COMMAND – SCOM
OFFICE OF SECRETARY OF DEF – SDRA
SELECTIVE SERVICE SYSTEM – SSSO
US STRATEGIC COMMAND – STRA
MARINE CORPS SYSTEMS CMD – SYSC
TRAINING AND EDUCTATION CMD E – TECE
US TRANSPORTATION COMMAND – TRAN
US SPECIAL OPS COMMAND – USSO
3RD MAW VMFAT 101 – V101
2ND MAW VMAT 203 – V203
WOUNDED WARRIOR REGIMENT – WWR1

About the author

Kevin Webb

1 Comment

  • Kevin,

    Great info! I just learned about the IMA, searched it, and found your blog. I am an active duty Marine of 9 years that have done too much time with OIF, OEF, GWOTE, TDY, TAD, training, you name it. I was looking to fully separate, but I though about the reserves but they only have 2 slots for me and its 100 miles away that would take me hours to drive in traffic. IMA was brought up and it seemed like a perfect match, 38 days a year with active duty Marines and a million 8014 billets at Camp Pendleton that I could fill and expand my experiences in other areas. I have a couple questions for you if you wouldn’t mind helping out a brother. Those 38 days, can I pick and choose them as I please? Do they have to be weekday only? Can I retire from the IMA the same way as SMCR with points? Some guidance from a duty expert like you would be great, thank you!

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