Your answer lies here I think...
(b) Electronic fund transfer —(1) Definition . The term electronic fund transfer means any transfer of funds that is initiated through an electronic terminal, telephone, computer, or magnetic tape for the purpose of ordering, instructing, or authorizing a financial institution to debit or credit a consumer's account. The term includes, but is not limited to—
(i) Point-of-sale transfers;
(ii) Automated teller machine transfers;
(iii) Direct deposits or withdrawals of funds;
(iv) Transfers initiated by telephone; and
(v) Transfers resulting from debit card transactions, whether or not initiated through an electronic terminal.
Preauthorized transactions may be exempted per the definition here:
2(k) Preauthorized Electronic Fund Transfer
1. Advance authorization. A “preauthorized electronic fund transfer” under Regulation E is one authorized by the consumer in advance of a transfer that will take place on a recurring basis, at substantially regular intervals, and will require no further action by the consumer to initiate the transfer. In a bill-payment system, for example, if the consumer authorizes a financial institution to make monthly payments to a payee by means of EFTs, and the payments take place without further action by the consumer, the payments are preauthorized EFTs. In contrast, if the consumer must take action each month to initiate a payment (such as by entering instructions on a touch-tone telephone or home computer), the payments are not preauthorized EFTs.
IMO though I would say they are Reg E transfers by virtue of the fact that they are funds electronically transferred from one account to another... without being preauthorized to occur on a regular basis.
Cheers!
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MBA Fin/MBS HR
My views only!