RDD is the abbreviation for which date?

• A. Requested delivery date
• B. Returnable delivery date
• C. Required delivery date
• D. Ready delivery date

Answer: (C)

RDD refers to the date by which delivery must be completed—the Required Delivery Date. In planning and scheduling, this is the non‑negotiable target that drives when production, procurement, and shipping need to be completed to meet a commitment to the customer or downstream process. It’s derived from the order’s due date or delivery commitment, minus the total lead time needed for production, handling, and transport. This is what you must meet, rather than a date the customer merely requests. For example, if a customer requires delivery by the 20th and total lead time is 6 days (4 days to manufacture plus 2 days to ship), you’d plan to have the item ready to ship by the 20th, coordinating production to finish by then.