The Bush administration has adopted a much looser interpretation than the Iraqi government of several key provisions of the pending U.S.-Iraq security agreement, U.S. officials said Tuesday — just hours before the Iraqi parliament was to hold its historic vote. ...

Among the areas of dispute are:

• Iraqi legal jurisdiction over U.S. troops or military contractors who kill Iraqis on operations. The agreement calls for Iraq to prosecute U.S. troops according to court procedures that have yet to be worked out. Those negotiations, administration officials have argued, could take three years, by which time the U.S. will have withdrawn from Iraq under the terms of the agreement. In the interim, U.S. troops will remain under the jurisdiction of America's Uniform Code of Military Justice.

• A provision that bars the U.S. from launching military operations into neighboring countries from Iraqi territory. Administration officials argue they could circumvent that in some cases, such as pursuing groups that launch strikes on U.S. targets from Syria or Iran, by citing another provision that allows each party to retain the right of self-defense. One official expressed concern that "if Iran gets wind that we think there's a loophole there," Tehran might renew its opposition to the agreement.

• A provision that appears to require the U.S. to notify Iraqi officials in advance of any planned military operations and to seek Iraqi approval for them, which some U.S. military officials find especially troubling, although Robert Gates, the secretary of defense, Army Gen. David Petraeus, the head of the U.S. Central Command, and Army Gen. Raymond Odierno, the top U.S. commander in Iraq, all have endorsed it.

"Telling the Iraqis in advance would be an invitation to an ambush," said one U.S. official, who said the Iraqi government and security forces are "thoroughly penetrated by the insurgents, the Iranians, the Sadrists (followers of anti-American Shiite cleric Moqtada al Sadr) and ordinary folks who just sell scraps of intelligence."