The offense of effecting an unlawful enlistment, appointment, or separation, now codified at Article 104b (10 U.S.C. 904b) after the 2019 Military Justice Act renumbered it from the former Article 84, is narrower than its plain-English description suggests, and that narrowness is exactly why a deliberate misclassification of a military occupational specialty is a poor fit for the charge. Article 104b punishes a person who effects an unlawful enlistment, appointment, or separation. Assigning or misassigning an occupational specialty is generally none of those three things. Whether a deliberate MOS misclassification can support an Article 104b charge therefore depends on whether the misconduct actually involves an enlistment, an appointment, or a separation, and in the ordinary case it does not. To see why, it helps to read the statute carefully and then test the conduct against its elements.
What Article 104b actually prohibits
Article 104b reaches a person subject to the UCMJ who effects an enlistment or appointment in, or a separation from, the armed forces of any person who is known to be ineligible for that enlistment, appointment, or separation because it is prohibited by law, regulation, or order. The elements that flow from this text are that the accused effected an enlistment, appointment, or separation; that the person enlisted, appointed, or separated was ineligible; that the ineligibility existed because it was prohibited by law, regulation, or order; and that the accused knew of that ineligibility at the time. The offense is committed by the official or member who processes someone into the service, into an office, or out of the service when that person legally cannot be processed in that way.
Two features of the statute are critical. First, the prohibited acts are specifically enlistment, appointment, and separation, which are the formal transactions that bring a person into the armed forces, confer an office, or remove a person from service. Second, the accused is the one who effects that transaction for someone known to be ineligible. Article 104b punishes the facilitator of an unlawful entry, appointment, or exit, not a member who falsifies their own records, which is a different offense.
Why MOS misclassification usually falls outside Article 104b
A military occupational specialty is a classification of the duties a service member performs. Assigning, reclassifying, or misclassifying an MOS is a personnel-management action that occurs after a person is already a member of the armed forces. It is not …