Non-judicial Punishment

Non-judicial punishment in the United States military, is a form of military justice authorized by Article 15 of the Uniform Code of Military Justice. Non-judicial punishment or "NJP" permits commanders to administratively discipline troops without a court-martial. Punishment can range from reprimand to reduction in rank, correctional custody (aboard ships only), loss of pay, extra duty, and/or restrictions. The receipt of non-judicial punishment does not constitute a criminal conviction (it's equivalent to a civil action), but is often placed in the service record of the individual. The process for non-judicial punishment is governed by Part V of the Manual for Courts-Martial and by each service branch's regulations.

Non-judicial punishment proceedings are known by different terms among the services. In the U.S. Army and the U.S. Air Force, non-judicial punishment is referred to as Article 15; in the Marine Corps it is called being "NJP'd" or being sent to "Office Hours". The U.S. Navy and the U.S. Coast Guard call non-judicial punishment captain's mast or admiral's mast, depending of the rank of the commanding officer. It is known colloquially as "being booked".