Structure of Marine Corps Training Battalions, Companies, and Platoons

There are two facilities for recruit training. They are called Marine Corps Recruit Depot (MCRD). They are located in San Diego, California and Parris Island, South Carolina. The acronyms for each are MCRD SD and MCRD PI.

Though there are some exceptions, for the most part, the Mississippi River is the dividing point for which MCRD your son or daughter will attend. Recruits west of the Mississippi River attend MCRD SD. Recruits east of the Mississippi River attend MCRD PI. All female recruits attend MCRD PI (no exceptions).

Each MCRD includes Recruit Training Battalions, or RTB. Each RTB has a color and crest associated with it. RTBs are divided into companies, and each company is divided further into platoons. Each platoon has a 4-digit number. Each company runs a 13-week training schedule and graduate on the same day.

A battalion is identified by number, 1-4. Each company is identified by a letter in alphabetical order. The platoon is identified by a 4-digit number, with the first number indicating which battalion they are from.

Structure of Training Battalions Companies and Platoons for Marine Corps Recruit Training

December 11, 2014: Colonel Jim G. Gruny (left), commanding officer, Recruit Training Regiment, leads Marines of Alpha Company, 1st Recruit Training Battalion, during their motivational run at Marine Corps Recruit Depot San Diego, Dec. 11. During the run, family members were able to see their new Marines for the first time since they initially arrived at recruit training.
— USMC Photo.


Battalion Crests

The following is the breakdown of each MCRD.

San Diego MCRD

  • 1st Battalion (red)
    (platoon numbers begin with 1xxx)
    • Alpha Company
    • Bravo Company
    • Charlie Company
    • Delta Company
  • 2nd Battalion (yellow)
    (platoon numbers begin with 2xxx)
    • Echo Company
    • Fox Company
    • Golf Company
    • Hotel Company
  • 3rd Battalion (blue)
    (platoon numbers begin with 3xxx)
    • India Company
    • Kilo Company
    • Lima Company
    • Mike Company

Parris Island MCRD

  • 1st Battalion (red)
    (platoon numbers begin with 1xxx)
    • Alpha Company
    • Bravo Company
    • Charlie Company
    • Delta Company
  • 2nd Battalion (yellow)
    (platoon numbers begin with 2xxx)
    • Echo Company
    • Fox Company
    • Golf Company
    • Hotel Company
  • 3rd Battalion (blue)
    (platoon numbers begin with 3xxx)
    • India Company
    • Kilo Company
    • Lima Company
    • Mike Company
    • Quebec Company
  • 4th Battalion (maroon)
    (platoon numbers begin with 4xxx)
    • November Company
    • Oscar Company
    • Papa Company

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