USCIS announced it will accept FY2021 H-1B cap-subject petitions that were rejected or closed solely because they requested a start date after October 1, 2021. AILA began raising this issue with USCIS in fall 2020, including by submitting a comment requesting a policy clarification.
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https://www.uscis.gov/working-in-the-united-states/h-1b-specialty-occupations