George W Bush has blocked dozens of last-minute rules and regulations rushed through by Bill Clinton in his last hours as US President - including an order allowing smaller holes in Swiss cheese.
His administration also approved a £1.88bn housing grant for the poor and a new restriction on flights over national parks.
But the initiatives were stopped almost immediately when Mr Bush placed a moratorium on any rules and regulations not published in the Federal Register.
The practice of putting a predecessor's last acts on hold is not a new one. Ronald Reagan did it to Jimmy Carter in 1981 and Mr Clinton to Mr Bush senior in 1993.
Mr Clinton was apparently aware Mr Bush would block his move, as he flooded the Federal Register with rules and regulations in the last few days of his presidency in the hope some of them would slip through.
Mr Bush has vowed to review all the executive orders signed by Mr Clinton.