Application for National Interest Waiver EB-2 NIW Form I-140 NIW I-140 NIW Petition In the United States, an application for National Interest Waiver (NIW) is a request submitted by foreign nationals seeking an exemption from the labor certification requirement as part of the employment-based green card process in the United States. By applying for an NIW, applicants are essentially requesting that the requirement for a job offer and labor certification be waived due to their work being deemed in the national interest of the United States. The NIW is typically filed as part of the I-140 petition (Immigrant Petition for Alien Worker) and requires demonstrating how the applicant's work benefits the U.S. in a significant and unique manner