; and (4) by adding at the end the following new sentence: An officer whose retired grade is increased as described in the preceding sentence shall not be entitled to an increase in retired pay for any period before the effective date of the increase. . (c) Effective date The amendments made by this section shall take effect on the date of the enactment of this Act, and shall apply to an increase in the retired grade of an officer that occurs through a reopening of the determination or certification of the officer's retired grade of officer on or after that date, regardless of when the officer retired. 507. Availability on the Internet of certain information about officers serving in general or flag officer grades (a) Availability required (1) In general The Secretary of each military department shall make available on an Internet website of such department available to the public information specified in paragraph (2) on each officer in a general or flag officer grade under the jurisdiction of such Secretary, including any such officer on the reserve active-status list. (2) Information The information on an officer specified by this paragraph to be made available pursuant to paragraph (1) is the information as follows: (A) The officer's name. (B) The officer’s current grade, duty position, command or organization, and location of assignment. (C) A summary list of the officer’s past duty assignments while serving in a general or flag officer grade. (b) Additional public notice on certain officers Whenever an officer in a grade of O–7 or above is assigned to a new billet or reassigned from a current billet, the Secretary of the military department having jurisdiction of such officer shall make available on an Internet website of such department available to the public a notice of such assignment or reassignment. (c) Limitation on withholding of certain information or notice (1) Limitation The Secretary of a military department may not withhold the information or notice specified in subsections (a) and (b) from