Might it not depend on who gets to claim the kid?

And I just noticed that the IRS updated its FAQ's on ACTC last week.  They are really ahead of the game, one of the answers is updated to June 14, 2022.  

https://www.irs.gov/credits-deductions/2021-child-tax-credit-and-advance-child-tax-credit-payments-t...

I'm hoping I don't have a client who needs to use the "repayment protection" provision.  Seems to depend on AGI and filing status.