On January 21st, 2009, his very first day in office, Barack Obama implemented and signed into law Executive Order 13489.
Executive Order 13489: http://edocket.access.gpo.gov/2009/pdf/E9-1712.pdf
section 2 applies:
Notice Of Intent To Disclose Presidential Records
"When the Archivist provides notice to the incumbent and former Presidents of his intent to disclose Presidential records pursuant to section 1270.46 of the NARA regulations, the Archivist, using any guidelines providied by the incumbent and former Presidents, shall identify any specific materials, the disclosure of which he believes may raise a substantial question of executive privilege.”
Executive Order 13489: http://edocket.access.gpo.gov/2009/pdf/E9-1712.pdf
section 2 applies:
Notice Of Intent To Disclose Presidential Records
"When the Archivist provides notice to the incumbent and former Presidents of his intent to disclose Presidential records pursuant to section 1270.46 of the NARA regulations, the Archivist, using any guidelines providied by the incumbent and former Presidents, shall identify any specific materials, the disclosure of which he believes may raise a substantial question of executive privilege.”
