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| Petty Officer Third Class (United States Navy) | |
|---|---|
| Name | Petty Officer Third Class |
| Native name | PO3 |
| Country | United States |
| Service | United States Navy |
| Higher rank | Petty Officer Second Class |
| Lower rank | Seaman |
| Abbreviation | PO3 |
Petty Officer Third Class (United States Navy) is a non-commissioned enlisted rate in the United States Navy that serves as the introductory petty officer grade. It functions across United States Fleet Forces Command, United States Pacific Fleet, Naval Sea Systems Command, Naval Air Systems Command, and other United States Department of the Navy organizations, bridging junior enlisted personnel with Chief Petty Officer leadership. The rate is comparable in responsibility to equivalent grades in the United States Coast Guard, United States Marine Corps, and international navies such as the Royal Navy, Royal Australian Navy, and Canadian Forces Maritime Command.
Petty Officer Third Class occupies the first supervisory rung within the enlisted petty officer structure alongside ratings that include Information Systems Technician, Hospital Corpsman, Machinist's Mate, Electronics Technician, and Aviation Electronics Technician. Sailors at this rate are assigned to units within USS Nimitz (CVN-68), USS Ronald Reagan (CVN-76), Naval Station Norfolk, Naval Base San Diego, and shore commands including Naval Air Station Whidbey Island and Naval Submarine Base New London. The rate interfaces with systems and communities linked to Naval Special Warfare, Surface Warfare, Submarine Force, and Naval Aviation platforms.
The insignia for Petty Officer Third Class is a perched eagle above a single chevron worn on the left sleeve of service uniforms and on enlisted service khakis. Insignia styling corresponds with regulations from the Secretary of the Navy and uniform standards promulgated by Navy Personnel Command. Dress regulations affect wear on uniforms such as the Navy Working Uniform, Service Dress Blue, Service Dress White, and Navy Service Uniform. Specialty marks denoting ratings appear between the eagle and chevron, with rating badges regulated similarly to insignia in the United States Coast Guard and historical precedents from the United States Revenue Cutter Service.
Petty Officer Third Class corresponds to pay grade E-4 under the United States military pay grades system used by the Department of Defense. Comparable pay grades include Corporal in the United States Marine Corps and Specialist in the United States Army. Basic pay and allowances are determined by rank tables published annually by the United States Department of Defense and apply to sailors assigned to commands such as Naval Air Station Pensacola, Naval Support Activity Bahrain, and deployed units attached to United States Sixth Fleet and United States Seventh Fleet.
A Petty Officer Third Class performs technical, supervisory, and administrative tasks within ratings like Operations Specialist, Gunner's Mate, Yeoman, Cryptologic Technician, and Legalman. Duties include maintenance of equipment aboard ships such as Arleigh Burke-class destroyer, operational support on aircraft like the F/A-18 Hornet, and administrative functions at shore facilities including Naval Hospital Bremerton and Fleet Logistics Center. They act as section leaders under Chief Petty Officer oversight and coordinate training, watchstanding, and readiness for detachments operating with units such as Carrier Strike Group and Amphibious Ready Group.
Advancement to Petty Officer Third Class is achieved through performance evaluations, advancement examinations administered by Navy Personnel Command, and quotas set by rating communities including Naval Aviation Community and Surface Warfare Officers School. Selection factors include Good Conduct Medal eligibility, evaluation from commanding officers, and competing in rating-specific advancement exams similar to processes used in United States Coast Guard Advancement Exams. Further promotion to Petty Officer Second Class and Petty Officer First Class requires timed service, exams, and selection boards used across commands like Naval Education and Training Command.
Sailors reaching this rate typically complete initial entry training at facilities such as Recruit Training Command in Great Lakes, Illinois, followed by “A” and “C” schools at sites like Naval Technical Training Center, Center for Naval Aviation Technical Training and Surface Warfare Schools Command. Specialty qualifications include warfare pins from communities like Enlisted Aviation Warfare Specialist, Enlisted Surface Warfare Specialist, and Enlisted Submarine Warfare Specialist. Professional development opportunities involve schools administered by Naval Postgraduate School affiliates and certification pathways recognized by civilian institutions such as American Society for Quality or Federal Aviation Administration where applicable.
The petty officer structure traces lineage to 19th-century ratings in the United States Navy and precedents in the Royal Navy. The modern Petty Officer Third Class emerged as enlisted professionalization expanded during periods including the Spanish–American War, World War I, World War II, Korean War, and Vietnam War, adapting to technical demands of systems like sonar, radar, and naval aviation. Administrative reforms under secretaries such as Frank Knox and later organizational changes influenced by Goldwater-Nichols Act shaped promotion, pay, and classification practices continuing into contemporary operations alongside strategic efforts in theaters including the Gulf War and War on Terror.
Category:United States Navy enlisted ranks