Army, Royal Marines and Canadian Army, the term "company commander" is also commonly used for the officer (usually a major) formally titled the officer commanding (OC) United States In the United States Army, Marine Corps and United States Navy the position of company commander is usually held by a captain or lieutenant with three to six years of service as an officer. A senior first lieutenant or lieutenant junior grade may be selected for company command in lieu of an available captain or lieutenant. As commanding officer, he or she exercises full command and control over the unit and may exercise non-judicial punishment authority over unit personnel. A company command billet is usually considered a prestigious assignment and important in career progression if an officer hopes to attain higher rank. A typical tour of duty for this assignment averages 12 months in the active duty component and 24 to 36 months in the reserve components. Usually, a company executive officer and a company first sergeant / chief petty officer are assigned to assist the company commander and both are vital to his or her success in commanding the unit. Some specialized company-sized units, such as Aviation and Seabee companies are assigned a Major / lieutenant commander as a company commander due to the increased responsibility of such assignments; the platoons which comprise these companies are typically commanded by captains rather than lieutenants, with another captain, rather than a first lieutenant, as the company's second-in-command. In the U.S. Navy, company commanders serve as SeaBee commanders. In the United States Navy Seabees, the position of company commander is typically held by a navy lieutenant (O3) with four to ten years of service as an officer. Typically, the junior lieutenants command Bravo, Charlie and specialized companies. The senior lieutenants typically command Alpha Company, due to its larger size, and increased responsibility, due to overseeing construction and automotive equipment. Since 2013, navy lieutenant commanders (O4) have typically been overseeing Alpha Companies on the reserve component side. In the United States Coast Guard, a company commander is the enlisted person in charge of a recruit company's training during boot camp. They are the Coast Guard's equivalent of a drill instructor. (The United States Navy once used the same term in its recruit training, but that title has been replaced by "recruit division commander".) See also Company Commander (game) Military ranks Titles