United States Armed Forces

====Warrant officer corps====
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[[Warrant officer (United States)|Warrant officers]] are specialists, accounting for only 8% of the officer corps.<ref name="bls.gov"/> Warrant officers hold warrants from their service secretary and are specialists and experts in certain military technologies or capabilities. The lowest-ranking warrant officers serve under a warrant, but they receive commissions from the president upon promotion to chief warrant officer 2. They derive their authority from the same source as commissioned officers but remain specialists, in contrast to commissioned officers, who are generalists. There are no warrant officers in the Air Force or Space Force.<ref name="ReferenceC"/>

Warrant officers are typically non-commissioned officers before being selected, with the exception of the Army Aviation where any enlisted grade can apply for a warrant. Army Warrant officers attend the [[Warrant Officer Candidate School (United States Army)|Army Warrant Officer Candidate School]].<ref>{{cite web|url=https://www.goarmy.com/careers-and-jobs/current-and-prior-service/advance-your-career/warrant-officer.html|title=What is a Warrant Officer?|website=goarmy.com}}</ref>