taken. If the fraction is ½ , the next higher whole number shall be taken. (d) Temporary increase in numbers The total number of officers authorized by law to be on the lineal list during a fiscal year may be temporarily exceeded if the average number on that list during that fiscal year does not exceed the authorized number. (e) Positions of importance and responsibility Officers serving in positions designated under section 228(a) and officers recalled from retired status shall not be counted when computing authorized strengths under subsection (c) and shall not count against those strengths. (f) Preservation of grade and pay No officer may be reduced in grade or pay or separated from the commissioned officer corps of the Administration as the result of a computation made to determine the authorized number of officers in the various grades. . 102. Recalled officers Section 215 ( 33 U.S.C. 3005 ) is amended— (1) in the matter before paragraph (1), by striking Effective and inserting the following: (a) In general Effective