Which component you're in could make a difference here. Within the timeframe of your enlistment contract, it can be done in the reserve components, but the only options for active soldiers are 1: reenlist for a new MOS, 2: reclassify through the BEAR programme (for occupations such as EOD), or 3: complete SFAS and the Q-Course, for which you'll be awarded an 18 series (Special Forces) MOS.
Note that, just because it's possible to do in a reserve component, doesn't mean you'll be allowed to do it on a whim. You would need a valid reason, e.g., you're moving elsewhere, and no unit within within reasonable distance of your new location has slots for your MOS.
reclassify, declassify
That is the correct spelling of "recategorize" (reclassify).
He gave them a number and took away their identity
South, Midwest, West, and East
The Marine Corps is very good at avoiding MOS overages in the support services. If you join the Marines to be a cook, they let you enlist to be a cook because they thought one of their cooks was about to get out of the Corps. If that guy stays in the Corps, they WILL reclassify you to something else. This happened to my brother--he was reclassified to three different things before he got out of training. Your case is different: there are never enough 0311s. If you want to be an 0311, and you can pass infantry school, you'll be an 0311.
New technology and studies led them to reclassifying the sponge.
all of the above
It is MOS 1141.
MOS stands for Military Occupational Specialty. You may hear MOS 68F or something else. Each job is assigned a MOS.
Mos Certification = Microsoft Certification
MOS Burger was created in 1972.
The population of MOS Burger is 2,010.