Found on Web:

In addition to phasing in access to BOI across federal agencies, FinCEN will initially use its discretion to allow only certain financial institutions such access. At this time, FinCEN “intends to permit only financial institutions with obligations under the 2016 CDD Rule to have access to the BOI database.” Thus, certain BSA-regulated financial institutions, such as Money Services Business, casinos, insurance companies, precious metals dealers, and others which are not subject to the 2016 CDD Rule, will not have database access initially, creating potential information imbalances among BSA-regulated entities. FinCEN explained that security standards associated with such entities warrant additional scrutiny prior to granting access.

Good to know the casinos, draft kings, fanduel, etc. have to wait a year.  Probably H&R Block...'er Intuit...too. LOL