Seaman apprentice is the second lowest enlisted rate in the U.S. Navy, U.S. Coast Guard, and the U.S. Naval Sea Cadet Corps just above seaman recruit and below seaman; this rank was formerly known as seaman second class.
The actual title for an E-2 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 apprentice title. Those who once held the rank of dentalman apprentice have instead become hospitalman apprentices.
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 (i.e., "machinist's mate fireman apprentice", as opposed to simply "fireman apprentice"), 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."