Section 135(a) of such title is amended by adding at the end the following new sentence: A person may not be appointed as Under Secretary within five years after relief from active duty as a commissioned officer of a regular component of the armed forces. . (e) Under Secretary of Defense for Personnel and Health Subsection (a) of section 136 of such title, as amended by section 906(a) of this Act, is further amended by adding at the end the following new sentence: A person may not be appointed as Under Secretary within five years after relief from active duty as a commissioned officer of a regular component of the armed forces. . (f) Under Secretary of Defense for Intelligence Section 137(a) of such title is amended by adding at the end the following new sentence: A person may not be appointed as Under Secretary within five years after relief from active duty as a commissioned officer of a regular component of the armed forces. . 909. Redesignation of Principal Deputy Under Secretaries of Defense as Deputy Under Secretaries of Defense and related matters (a) Redesignation Section 137a of title 10, United States Code, is amended by striking Principal each place it appears. (b) Increase in authorized number Subsection (a)(1) of such section is amended by striking five and inserting six . (c) Replacement of ATL position with two positions in connection with OSD reform Subsection (c) of such section is amended— (1) by redesignating paragraphs (2) through (5) as paragraphs (3) through (6), respectively