Marine OSO information

November 11th, 2012

St. Louis OSO

The St. Louis OSO is located at 1222 Spruce Street, Ste 10.306 (view on Google Maps). You can call the office at 314-331-4561. You can also visit the St. Louis OSO online at

After finding your local Marine OSO, learn how to apply for commissioning or prepare yourself physically for Marine OCS.

If any of the above information is incorrect, please contact me.

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