Shipmondo now supports the UPS service Adult Signature Required, which you can use when shipping with UPS on your own agreement.
The service ensures that the shipment is received by an adult. This is particularly useful when shipping contents that must not be received by minors, such as alcohol or tobacco products.
When booking UPS shipments, a field with a drop-down menu will appear, where you can choose either Signature Required or Adult Signature Required, as both cannot be selected at the same time.

For API users only
When booking via API, the following product code AGE_VERIFICATION should be used in your Create shipment request.