The following businesses are registered with DHEC Class I - Direct Sale and Transfer of Radiation Machines and Machine Components Class II - Installation, Assembly, Service, and Testing of Radiation Machines and Associated Components Class II-A - Installation of Radiation Machines and Associated Machine Components Class II-B - Servicing of Radiation Machines and Associated Machine Components Class II-C - Perform "Equipment Performance Tests" as Outlined in RHB 4.2.16 Class III - Diagnostic Radiographic Facility and Shielding Design Class IV - Non-Healing Arts Facility and Shielding Design and Area Radiation Survey Class VI - Radiation Instrument Calibration Class VII - Therapeutic Facility and Shielding Design, Area Radiation Surveys, or Calibration Class VIII - General Health Physics Consulting, Non-Healing Arts Class IX - General Health Physics Consulting, Healing Arts Tags Facilities Health Regulations & Licensing