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If your lab is based at Harvard University, and your sponsoring PI has a primary or secondary faculty appointment in an HMS Blavatnik Institute Basic or Social Science (“Quad”) department, and you already have an HMS Account, you can request an O2 account directly by filling out the O2 account request form.
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You will first need to be registered as a Harvard Sponsored Role, which is essentially Harvard University’s guest user registration, as described in https://it.hms.harvard.edu/our-services/accounts-and-user-access/person-interest-poi.
When that request is approved, the guest person is automatically provisioned an HMS account.
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