Spanier's lawyer Ed Spreha confirmed the one-page order, which was posted on the court system's website, but declined to comment on its substance.
The order requires Spanier to provide five days' notice of any travel outside Pennsylvania. He may not have any contact with current or past members of the Penn State Board of Trustees, or with any witnesses in the case against him.
Spanier faces charges that include obstruction and perjury for allegedly covering up complaints in the Jerry Sandusky child molestation scandal.
He had sought permission to travel to Europe for work and family matters, but the bail modification limits him to the continental United States.
A message left for the attorney general's office late Monday was not immediately returned.
Spanier served as Penn State president for 16 years before he was forced out in November 2011, shortly after Sandusky was arrested along with two other former university administrators.
Spanier and the other officials, Tim Curley and Gary Schultz, are awaiting a preliminary hearing and all three deny the allegations.
A hearing is scheduled for Jan. 10 in Bellefonte regarding Sandusky's post-sentencing motions. He was convicted in June of 45 counts of child sexual abuse, but maintains his innocence and is pursuing appeals.