The U.S. Navy has announced the establishment of four new ratings for active duty Sailors: yeoman submarine (YNS), logistics specialist submarine (LSS), culinary specialist submarine (CSS) and fire controlman Aegis (FCA). The new ratings will be effective: (1) Sept. 2, 2017 for E-6; (2) Oct. 17, 2017 for E-7 through E-9; and (3) Nov. 28, 2017 for E-1 through E-5. The new ratings are for active duty Sailors and billets and will not be applied to the reserve component. Also, there will be no changes to Sea/Shore flow resulting from the new ratings. An advancement exam will be created for each new service rating. The first E-7 exam for these ratings will be given in January 2018. For E-4, E-5 and E-6 exams for these new ratings will be given in March 2018. For more details, see this Military.com news article.