Guide · Certified Mail
USPS Certified Mail Tracking Statuses Explained
You sent a Certified letter and USPS just posted a new status on the tracking page. Here's what each one actually means and whether you need to do anything.
Pre-Shipment / Shipping Label Created
What it means: USPS has the tracking number on file but hasn't physically scanned the letter yet.
What to do: Nothing. The first real scan usually happens within 24 hours of drop-off.
Accepted / USPS in possession of item
What it means: A post office or carrier has scanned the piece into the network.
What to do: Nothing — this is the official 'mailed' event and the mailing date on the green receipt.
In Transit to Next Facility
What it means: The letter is moving between USPS processing centers.
What to do: Wait. Certified First-Class typically delivers in 2–5 business days.
Arrived at USPS Regional Facility
What it means: Reached a sort center on the way to the destination city.
What to do: Nothing. Expect another scan within 24–48 hours.
Arrival at Unit
What it means: The letter is at the local post office that services the recipient's address. Out for delivery is next.
What to do: If it doesn't move within 2 business days, call the destination post office with the tracking number.
Out for Delivery
What it means: A carrier has it on the truck for delivery today.
What to do: Wait for the delivery scan or a Notice Left.
Notice Left (No Authorized Recipient Available)
What it means: Nobody was available to sign, so USPS left PS Form 3849 for the recipient to pick it up or schedule redelivery.
What to do: The recipient has 15 days to claim it. After that it's returned to sender.
Unclaimed / Return to Sender
What it means: The recipient never picked up the letter within the hold period.
What to do: It will be returned to the sender address on the envelope. Consider resending or trying a different address.
Delivery Attempted — No Access to Delivery Location
What it means: A gate, building lock, or other obstacle blocked delivery.
What to do: Recipient can schedule redelivery or pick up at the local post office.
Delivered
What it means: USPS handed the letter to the recipient (or an authorized agent) and captured a signature.
What to do: Nothing. The signature is stored electronically and available for years — save the tracking number.
When to actually worry
- No scans at all after 3 business days from drop-off — the piece may have been missorted.
- Stuck on the same status for more than 5 business days — call USPS at 1-800-275-8777 with the tracking number.
- Marked Delivered but the recipient says they didn't receive it — request the signature record; USPS keeps it for at least 2 years.
Need to send another certified letter?
Upload a PDF and Postabl prints and mails it with USPS tracking — Return Receipt optional.
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