The University of Arizona AMS Laboratory offers a wide range of dating services. Please browse the services we offer using the menus on the left and once you are ready to submit an order, login to our secure portal to create and track your order. If you are interested in submitting soil samples, proper documentation must accompany your shipment. This consists of the 2018 Soil Permit to include within the package and the PPQ 550 Label that must be adhered to the outside of the package.