Since a MMDA is a savings account - it is not subject to Reg CC Funds Availability disclosure and hold rules correct?

Thanks in advance.

Correct. MMDAs are governed by Reg D.

(2) The term “savings deposit” also means: A deposit or account, such as an account commonly known as a passbook savings account, a statement savings account, or as a money market deposit account (MMDA),

Check your state laws, however. In California, savings accounts are subject to state funds availability laws.

Interesting. Out of curiosity, how do deposit-secured loans work? I assume there are exceptions to account for it?

Collateral holds are not subject to Reg CC.

I am referring to the reference of savings accounts in California, and am genuinely curious. (Of course, if that's what you're meaning, then thank you.....and then I feel like a dummy. Hehe.)

Not a dummy at all!

Massachusetts, like California, pulls savings account under the Reg CC tentflaps, and bankers here have to make funds in regulator savings and MMDA accounts available just as they would if the funds were in a transaction account. CD accounts aren't affected.

But, a collateral hold on all or a portion of an account balance isn't affected by Reg CC. It takes precedence, as would a hold on funds in response to an IRS levy or other legal attachment of the funds.