We are going to make an advertisement for a new ATM that accepts checks and cash.
If we want to put on the ad - " Deposit checks and cash", do we need to put * Subject to funds availability policy or something similar?

Reg CC doesn't have any disclosure requirements for marketing materials.

For ATMs, the requirement is on the ATM itself as stated in 229.18(c)

(c) Automated teller machines.

(1) A depositary bank shall post or provide a notice at each ATM location that funds deposited in the ATM may not be available for immediate withdrawal.

(2) A depositary bank that operates an off-premises ATM from which deposits are removed not more than two times each week, as described in Sec. 229.19(a)(4), shall disclose at or on the ATM the days on which deposits made at the ATM will be considered received.

Not particularly, in my mind.

Thank you!