Dungarees were the junior enlisted (E1-E6) working uniform worn from 1913 through the 1990s; through World War II dungarees with a garrison or combination cover were also worn by CPOs engaged in dirty jobs. Unlike later working uniforms, dungarees were not allowed to be worn outside of military installations; service members were allowed to wear the uniform to and from the installation in a vehicle, but were not authorized to make any stops between while in the dungarees. In fact, until World War II dungarees could only be worn in port in ships' interior spaces, below the main deck or inside gun turrets.