Registered Cardiovascular Invasive Specialist Certificate within 12 months of hire OR Registered Cardiac Electrophysiology Specialist Certificate within 12 months of hire OR American Registry of Radiologic Technologists Certificate - Vascular Interventional Radiography within 12 months of hire from American Registry of Radiologic Technologists OR American Registry of Radiologic Technologists Certificate - Cardiac Interventional Radiography within 12 months of hire from American Registry of Radiologic Technologists. Cardiovascular Credentialing International (CCI) - Registered Cardiac Invasive Specialist (RCIS), or Registered Electrophysiology Specialist (RCES), or The American Registry of Radiologic Technologists Cardiac-Interventional Radiography (ARRT-CI) or Vascular-Interventional Radiography (ARRT-VI).