Tech I ARDMS in one modality (ABD, OB/GYN, RVT, RDCS) Tech II ARDMS certified in two modalities/ARDMS categories (ABD, OB/GYN, RVT, RDCS) Tech III ARDMS categories in three modalities (ABD, OB/GYN, RVT, RDCS) Tech IV ARDMS categories (ABD, OB/GYN, RVT, RDCS). Current or obtain registry within one year, ARDMS in one category (Abd or OB/GYN) Experience Required Able to perform all diagnostic exams as related to assigned modality.