What is Authority to Leave (ATL)?
Depending on the Sender, and depending on the item, sometimes you will be given Authority to Leave (ATL) a delivery.
ATL means that you can leave the delivery at the drop-off address if the recipient isn't present.
If you are given ATL, then you must get a picture for Proof of Delivery (POD). As you're not getting the signature of the Recipient, Go People and the Sender needs a photo for POD to know for sure that you've made the delivery successfully.
For more information see our article about Taking a Photo For Proof of Delivery.