Tech III ARRT (CT, MR, MG, NM) or ARDMS certified in three modalities modalities/ARDMS categories (RVT or RDCS) Tech IV ARRT (CT, MR, MG, NM) or ARDMS certified in four modalities modalities/ARDMS categories (RVT or RDCS) Computer Skills: • EHR• PACS• RIS Other Qualifications: BLS Certification. ARRT or ARDMS in one modality (i.e., ARRT general radiography or ARDMS one category) Tech II ARRT (CT, MR, MG, NM) or ARDMS /ARDMS categories (OB/GYN, Abd) certified in two modalities.