MCO 1040.43B governs applications for Marine Corps Enlisted to Officer Commissioning Programs and their eligibility and processing requirements.
View MCO 1040.43B on armypubs.army.mil
It covers selection board deadlines, eligibility, physical fitness and aptitude scores, security investigations, waivers, and precommissioning training. It also sets requirements for application documentation, disclosures, and commissioning eligibility.
Selection boards convene a maximum of three times per year. (paragraph 3)
Applicants who have used illegal/non-prescription drugs (including pre-service) must fully disclose in a handwritten statement the type, number of times used, and inclusive dates on both Appendix J and Appendix M within reference (b). (paragraph 4)
Per SECNAVINST 5510.30B, reference (c), candidates must have a current National Agency Check with Local Agency Check and Credit Check (NACLC) conducted by the Office of Personnel Management, or higher level security investigation prior to commissioning. (paragraph 6)
Approved candidates are required to participate in officer candidate training for a minimum of four weeks before any voluntary request for disenrollment will be considered. (paragraph 5)
Marines participating in an E-O program who are denied security clearances, or have a security clearance revoked will be involuntarily disenrolled from the E-O program. (paragraph 6)