authorized to add the Enlisted Aviation Warfare Specialist designator (AW) after his or her rate. Upon transfer to the Sailor's next aviation command, he or she is required to complete an abbreviated re-qualification process to familiarize the Sailor with the differences between various aviation platforms. This process must be completed within 12 months of reporting aboard or the Sailor loses the right to wear the EAWS insignia. The EAWS insignia is not required for continued advancement in the Navy, however for those in aviation rates the insignia must be obtained by three years as a Petty Officer Second Class. Those failing to obtain the insignia may be ineligible for advancement to Petty Officer First Class, reenlistment in their current rate or may be restricted to shore assignments. The EAWS insignia is considered one of three primary warfare badges available to the Navy's enlisted force. The other two aforementioned badges are the Enlisted Submarine Warfare Badge and the Enlisted Surface Warfare Specialist Badge. The gold Aircrew Badge or Naval Aircrew Wings (NAC) are a similar badge available to select enlisted personnel of the U.S. Navy aviation community. NAC is authorized for personnel who have undergone extensive training in flight operations of naval aircraft. Such training includes weapons management, electronic warfare, and water survival. Contrary to most other services, naval aircrewmen do not receive their wings after aircrew school. Rather, they receive their wings only after completing their platform respective Personnel Qualification Standards (PQS) (roughly 1 year past the completion of training). The Aircrew Badge is a separate badge from the EAWS Badge, and qualified service members are eligible to wear both badges simultaneously. Additionally the Fleet Marine Force (FMF) Insignia is reserved for Hospital Corpsmen, Religious Program Specialists, Logistics Specialists and Operations Specialists assigned to Fleet Marine Corps units. Sailors receiving this designator are authorized to wear it above any other designator while assigned to FMF units. OPNAVINST 1414.9B is the Navy instruction that governs the Enlisted Warfare Qualification Programs. See also List of United States Navy enlisted warfare designations Badges of the United States Navy Uniforms of the United States Navy References United States military badges