Seaman is one of the lowest ranks in a Navy. In the Commonwealth it is the lowest rank in the Navy, followed by Able Seaman and Leading Seaman, and followed by the Petty Officer ranks. In the United States it means the lowest three enlisted rates of the U.S. Navy, followed by the Petty Officer ranks. It is the equivalent of the private in the U.S. Army. In the Royal Navy, hold the rank titles of either Ordinary Seaman (commonly Ordinary Rate) or Able Seaman (commonly Able Rate). Seaman is the third enlisted rank in the U.S. Navy and other navies. For the U.S. Navy and U.S. Coast Guard the rate is just above Seaman Apprentice and below Petty Officer Third Class; this rate was formerly known as Seaman First Class. The actual title for an E-3 in the U.S. Navy varies based on the community to which the sailor belongs. Likewise, the color of their group rate marks also depends on their community. No stripes are worn on the working uniforms - coveralls or utilities. In October 2005, the Dental Technician rating was merged with the Hospital Corpsman rating, eliminating the Dentalman title. Those who once held the rank of Dentalman have instead become Hospitalmen. Sailors who have completed the requirements to be assigned a rating and have been accepted by the Bureau of Naval Personnel as holding that rating (a process called "striking") are called Designated Strikers, and are called by their full rate and rating in formal communications (ie, Machinist's Mate Fireman, as opposed to simply Fireman), though the rating is often left off in informal communication. Those who have not officially been assigned to a rating are officially referred to as "Undesignated" or "Non-rates." As with the Navy, the actual title for a E-3 in the United States Coast Guard varies based on their community. However, the smaller size of the Coast Guard limits E-3s to only three options: Seaman (white stripes), Fireman (red stripes), and Airman (green stripes).