To ensure quality healthcare, the American Registry of Radiologic Technologists (ARRT) has implemented a system of periodic evaluation consisting of Structured Education and Continuing Qualification Requirements (CQR). Radiologic Technologists certified before January 1, 2011, are not affected by these new requirements. Technologists who were certificate on or after 1/1/2011 receive a time-limited 10-year license. Once the 10 years are up, certification can be renewed for another 10 years by completing the CQR process. In addition, compliance with the ARRT rules and regulations includes an annual renewal process and biennial continuing education requirements. R.T.s in Nuclear Medicine require specific CE credits related to their certification. The ARRT calls this structured education.