The VA Portland Healthcare System (VHAPORHCS) Pathology & Laboratory Medicine Service Department performs kidney transplants for the Western Region. Donor-derived cell-free DNA (dd-cfDNA) is a blood tests that is non-invasive for kidney transplant surveillance. The importance of the surveillance is to monitor for rejections. Rejection can lead to damage and injury to the transplanted kidney. Other benefits of the blood tests include decreasing the necessity for invasive biopsy of the transplanted kidney and subsequent turn-around-time (TAT) of the biopsy results. The blood test can be drawn at any phlebotomy site without the necessity to schedule for Interventional Radiology to perform the procedure. This full-service Reference Laboratory contract will provide services required for specimen acquisition, specimen testing and interpretation, testing supplies, and customer service. This requirement will ensure accurate and timely test results are made available to healthcare providers which will ensure high quality healthcare is provided to the Veterans at the VA Portland Health Care System.