The Bush administration granted a visa Friday to Abolhassan Bani-Sadr, the former Iranian president, who is coming to the United States to promote a book in which he says that President Bush was involved in secret dealings with Iranian leaders during the Tehran hostage crisis.

The decision was made by Department of Justice officials hours after Deputy Secretary of State Lawrence Eagleburger recommended waiving a regulation prohibiting Bani-Sadr's entry because he was a member of the government of Ayatollah Ruhol-lah Khomeini at the time it was holding Americans taken hostage at the U.S. Embassy.Bani-Sadr is now expected to arrive in Washington from Paris late Saturday night or Sunday to catch up with the remaining appointments on a tour originally scheduled to begin Wednesday to discuss his book, "My Turn to Speak," published this week in a U.S. edition.

Administration officials have insisted that their hesitation on Bani-Sadr's application for a visa had nothing to do with allegations in his book that Bush was involved 11 years ago in attempt to manipulate the hostage crisis in order to boost election prospects of Ronald Reagan, his presidential running mate.

"It's been like a roller coaster for us," said Kim Brochard, spokesman for Bani-Sadr's publisher, Brassey's Inc.