Information or guidelines furnished to a selection board under subsection (a) may not be modified, withdrawn, or supplemented after the board submits its report to the Secretary of the military department concerned pursuant to
section 14109(a) of this title. However, in the case of a report returned to a board pursuant to
section 14110(a) of this title for further proceedings because of a determination by the Secretary of the military department concerned that the board acted contrary to law, regulation, or guidelines, the Secretary may modify, withdraw, or supplement such information or guidelines as part of a written explanation to the board as provided in that section.