; separation for failure of selection for promotion; continuation. 2144. Regular Coast Guard; officers serving under temporary appointments. 2145. Regular lieutenant commanders and commanders; retirement for failure of selection for promotion. 2146. Discharge in lieu of retirement; separation pay. 2147. Regular warrant officers: separation pay. 2148. Separation for failure of selection for promotion or continuation; time of. 2149. Regular captains; retirement. 2150. Captains; continuation on active duty; involuntary retirement. 2151. Rear admirals and rear admirals (lower half); continuation on active duty; involuntary retirement. 2152. Voluntary retirement after twenty years' service. 2153. Voluntary retirement after thirty years' service. 2154. Compulsory retirement. 2155. Retirement for physical disability after selection for promotion; grade in which retired. 2156. Deferment of retirement or separation for medical reasons. 2157. Flag officers. 2158. Review of records of officers. 2159. Boards of inquiry. 2160. Boards of review. 2161. Composition of boards. 2162. Rights and procedures. 2163. Removal of officer from active duty; action by Secretary. 2164. Officers considered for removal; retirement or discharge; separation benefits. 2165. Relief of retired officer promoted while on active duty. Subchapter III—General Provisions 2181. Physical fitness of officers. 2182. Multirater assessment of certain personnel. . (b) Redesignations and transfers (1) Requirement The sections of title 14, United States Code, identified in the table provided in paragraph (2) are amended— (A) by redesignating the sections as described in the table