PUBLIC LAWS-CH. 338-APR . 16, 1947 service subsequent to May 12, 1945, shall also be credited with the period from the date of her discharge or separation from active Federal military service to the date of her appointment. Deteramination ofih (b) The period of service credited to a person as provided in sub- to promotion. section (a) hereof shall be counted and construed as continuous active commissioned service on the active list of the Regular Army for the following two purposes: (1) For the purpose of determining the grade and rank of a person appointed under the provisions of this title, and (2) for the purpose of determining a person s right to promotion subse- quent to appointment under the provisions of this title. Except for the foregoing specified purposes, provisions of existing law regarding length of service and benefits accruing therefrom shall not be affected. Determination of SE . 106. Relative rank among commissioned officers of the Army Nurse Corps and the Women's Medical Specialist Corps, within each corps, and between such officers and other commissioned officers of the Regular Army, shall be determined in the manner now or hereafter prescribed by law for the determination of relative rank among other Duties commissioned officers of the Regular Army. Commissioned officers of each such corps shall not be entitled, by virtue of their rank, to com- mand, except within their respective corps, and over such persons as may be placed under their charge by competent authority, but may be assigned by the Secretary of War to perform such duties as the interests of the service may require. maronmtodto per - SEC. 107. (a) Commissioned officers of the Army Nurse Corps and the Women's Medical Specialist Corps, Regular Army, shall, upon completion of the length of service now or hereafter prescribed for promotion of promotion-list officers to the grade of first lieutenant, be promoted to the permanent grade of first lieutenant; commissioned offi- cers of such corps shall, after completing the length of service now or hereafter prescribed for promotion of promotion-list officers to the grade of captain, be promoted to the permanent grade of captain Majorupon satisfactorily passing such examinations as the Secretary of War shall prescribe. Promotion to the permanent grade of major shall be by selection, under regulations prescribed by the Secretary of War, from among officers in the grade of captain who have completed the length of service now or hereafter prescribed for promotion of pro- Lieutenant colonel. motion-list officers to the grade of major. Promotion to the permanent grade of lieutenant colonel shall be by selection, under regulations prescribed by the Secretary of War, from officers in the permanent Exainatons grade of major with at least one year's service in the grade of major. (b) The examination for promotion referred to in subsection (a) above shall be prescribed by the Secretary of War and shall be held before a board of three officers designated by the Secretary of War. Should any officer fail to pass such examination, she shall be con- tinued on active duty for a period of one year after the date upon which her promotion would normally have occurred, but without being Reexamiation. so promoted, and upon the expiration of such year, or such time anterior to the expiration thereof as may be determined by the Secre- tary of War to be for the best interests of the service, such officer shall undergo such reexamination as may be prescribed by the Secretary of War and which shall be held before a board of officers designated by the Secretary of War, none of whom participated in the original etopass. examination of the officer concerned. If the officer concerned fails to pass the reexamination, she shall be honorably discharged from the service in the permanent grade then held with severance pay the same as now or hereafter prescribed for officers of the Regular etirement af 20 Army separated by reason of not being selected for promotion. yea'service. SEC. 108. (a) An officer on the active list of either the Army Nurse Corps or the Women's Medical Specialist Corps, Regular 44 [61 STAT.