Marine Corps to offer commission to officers of other branches Published March 14, 2007 FORT COLLINS, Colo. -- The U.S. Marine Corps is offering a new program for officers released from the Air Force under the force-shaping program. Individuals that have been commissioned as an officer in another service will be eligible to earn a commission with the Marine Corps through the Officer Candidate Class program if they apply prior to promotion to 0-4. Officers who are 0-4 selects are eligible for application. Commissioned officers who are interested in a Marine Corps commission may contact their local Officer Selection Office in Denver at 303-832-7121, or in Fort Collins at (970) 484-8118.