Electronic
Electronic delivery of borrower-facing disclosures, and the acknowledgment record that delivery requires.
Delivery of a disclosure is a regulated event with a timestamp, not a file transfer. The slot covers sending the loan estimate and closing disclosure electronically, capturing consent to electronic delivery, and recording acknowledgment — which is the record that establishes when a disclosure period began.
The catalogue names this slot. No specification for it survives in the recorded definitions, so no endpoint detail is on record.