Fiscal Year 2021 starts on October 1, 2020 and H-1B cap season starts six months ahead of October 1, 2020. Thus, until now, H-1B cap petitions could not be filed until April 1. However, beginning from FY-2021 season, USCIS starts "registration" process before USCIS runs computer random selection process rather than the H-1B cap petition itself. H-1B cap petition is thus filed only when their "registration" is selected. Accordingly, beginning from next cap season, H-1B employers must go through the two-tier system.