If you are taking the mail to the actual SCF (sectional center facility), check Use SCF Discount. Check with your post office to see where your SCF is and whether your permit allows you to drop mail there. We strongly recommend that you consider this discount, since it reduces the cost for relatively-local mail by almost 2 cents apiece.
Enhanced Carrier Route mailings qualify for DDU discounts if you take the mail to the post office for the ZIP code(s) where the mail will be delivered. When you do an Enhanced Carrier Route mailing, Envelope Manager gives you a DDU ZIP5’s box where you enter all the ZIP codes you are willing to drive mail to.
