The Physical Agents Directive has yet to be implemented. The adopted Directive has been amended to provide for a later implementation date of April 2012 so that the European Union can reassess its potential impact. The Directive itself covers both optical and electromagnetic (EMF) radiation, but is specifically aimed at workers. Both the optical and the EMF parts of the Directive explicitly exclude patients. Therefore, there should be no effect on the number of medical scans patients receive each week unless implementation limits the types and number of scans that can be done because of exposure to clinical staff attending the patient. This cannot be assessed until the Directive is finally implemented.