2025-05-28 00:00:00 Excavators and facility operators can use the New Jersey One Call app to easily and quickly manage locate requests.  Anyone planning to excavate in New Jersey can use the app to initiate, manage and monitor a locate request prior to excavation. Use the app to: Access a Resource Center with links to the New Jersey One Call handbook, excavator guide, color codes and instructional videos. View and share these items with the click of a button.