The Bank credits deposits to your account on the day they receive the deposit. There is no seperate holding account for uncollected funds. Funds become available for your use based on the funds availability schedule in effect at your bank. This schedule cannot exceed the limits that are established in Regulation CC. Interest on those funds begins to accrue on those funds the day that the depository bank receives credit from the issuing bank. The depository bank may rely on the Federal Reserve Bank in it’s district to establish average time frames on which credit is received.
There is no such thing as a “3 day law”.
Banks do not provide immediate availability for checks, or begin to pay interest immediatly on checks because those funds are not available to the depository bank.
Great Gazoo - This thread is about Direct Deposit. If you have questions about Reg. CC or bank holds on funds open a new thread. This discussion will only serve to confuse the OP.