USCIS announced it will deny or revoke all petitions filed by an employer for the same H-1B worker if more than one filing is discovered. If multiple petitions are discovered, whether one or more such petitions are approved, USCIS will data enter all those duplicative petitions, retain all fees, and either deny the petitions or, if a petition was approved, revoke the petition. The petitions will not be returned to the petitioner.
As of June 6, 2008, USCIS has discovered that less than ½ of one percent of the total H-1B cap eligible petitions received involved duplicate or multiple filings for the same prospective beneficiary.