On February 24, 2021, USCIS announced that the 33,000 cap had been reached for H-2B non-agricultural seasonal worker visas for positions beginning during the second half of the FY 2021 fiscal year (April 1- September 30, 2021). You can see the cap count here. Any cap-subject petitions received after February 12th that have a job start date before October 1, 2021 will be rejected and returned to their petitioning employers.