USCIS announced that the H-1B registration period for cap-subject registrations would open on March 9, 2021, at noon eastern time. The registration period will close on March 25th at noon eastern time.
According to the notice:
A confirmation number will be assigned to each registration submitted for the FY 2022 H-1B cap. This number is used solely to track registrations; you cannot use this number to track your case status in Case Status Online.
Prospective H-1B cap-subject petitioners or their representatives are required to use a myUSCIS online account to register each beneficiary electronically for the selection process and pay the associated $10 H-1B registration fee for each registration submitted on behalf of each beneficiary. Prospective petitioners submitting their own registrations (U.S. employers and U.S. agents, collectively known as “registrants”) will use a “registrant” account that will be available soon. Representatives may add clients to their accounts at any time, but both representatives and registrants must wait until March 9 to enter beneficiary information and submit the $10 fee. Prospective petitioners or their representatives will be able to submit registrations for multiple beneficiaries in a single online session. Through the account, they will be able to prepare, edit, and store draft registrations prior to final payment and submission of each registration.
It is expected that USCIS will receive more registrations than visas are available to supply. Registrations will then be randomly selected and registrants will be notified via the myUSCIS account.