Does every bag require a vignette?

Each bag/bin containing mail must have a vignette or be sealed by means of a strip with bar code sticker (new procedure)

At EasyPost, we are constantly improving our processes. For this reason, we will soon be switching to a new method of identifying and registering mailbags and mail bins. We are rolling out the new way of working in phases over the coming weeks and months. You will be informed about this well in advance. You will no longer need to put vignettes (priority, non-priority or registered) in the mailbags. Instead, you have to seal the bags with strips that have a unique bar code sticker. Upon collection, the driver scans the mail bags and exchanges them for new ones.