EB3 Downgrade premium exception: If your i140 EB3 downgrade is filed at the SAME service center that earlier approved your i140, then your application is eligible for PREMIUM processing. The premium processing time for EB3 i140 also does not start immediately. The USCIS will first find PERM and then confirm the premium processing time start date. Your employer can attach a copy of the original EB2 PERM with a request that the original be fetched from the previous PERM file.