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The American Registry of Radiologic Technologists and The California Radiological Health Branch


User's Guide

California Radiologic Licenses, Certificates, and Permits

Welcome! This site is a collaboration between The American Registry of Radiologic Technologists (ARRT) and the California Department of Public Health—Radiologic Health Branch (CDPH-RHB). If CDPH-RHB has determined you’re eligible for a radiologic license, certificate or permit exam, you can use this site to pay electronically for your exam.

While ARRT administers certain exams for CDPH-RHB, it is not the same as ARRT certification and registration. Learn more about the difference between State Licensing and ARRT credentials.

ARRT administers exams for the following California State licenses, certificates and permits:

Radiologic Technology Certificates & Permits

  • Radiologic Technology Certificate
  • Radiography
  • Radiation Therapy
  • Mammographic Radiologic Technology Certificate
  • Radiologic Technologist Fluoroscopy Permit

California Limited Permit X-ray Technician

  • Dental Laboratory Radiography permit
  • Radiation Protection (Core) permit
  • Chest radiography permit
  • Extremities radiography permit
  • Torso-skeletal radiography permit
  • Skull radiography permit
  • Leg-podiatric radiography permit
  • Bone Densitometry


  • Supervisor and Operator Permits
  • Radiography (SOR exam starting 7.1.18)
  • Dermatology
  • Fluoroscopy
  • Physician Assistant Fluoroscopy Permit

How to Apply

Visit the User's Guide page of this site for full instructions on the application process. You'll download the application from the CDPH-RHB website and apply directly to the State of California.




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