Answer:
Deposits at proprietary ATMs must be provided the same availability schedule as deposits made at a teller window with the exception of next-day items that aren't US Treasury or on-us checks which can be treated as local checks if not deposited in person.
Deposits at non-proprietary ATMs can be held up to the 5th business day provided that your Funds Availability Disclosure states this along with how customers can distinguish between proprietary and non-proprietary ATMs.
Debit card refunds are electronic funds transfers and must be credited the day you receive them to comply with Regulation E and Visa/Mastercard Operating Rules.