Does Priority Mail require a signature upon delivery?

Priority Mail does not inherently require a signature upon delivery unless additional services are requested and paid for, such as Signature Confirmation. This is an important aspect of the service, as most deliveries can be made without a signature to streamline the process and improve efficiency. However, customers do have the option to add signature requirements for extra security or verification purposes, which is where the additional services come into play. This flexibility allows senders to choose the level of security they desire for their package deliveries, which is why the answer accurately reflects the policies related to Priority Mail.