Welcome to Our Resources Page
York Medical Physics provides access to regulatory information, compliance guidance, and practical tools to assist radioactive material licensees in maintaining safe and compliant operations.
Regulatory Updates
York Medical Physics monitors regulatory developments that may impact radioactive material licensees and provides updates when significant changes or emerging issues warrant attention.
Review of 10 CFR Part 35 Initiated
July 2026
The Nuclear Regulator Commission has initiated a review of regulations governing the medical use of byproduct material, including requirements contained in 10 CFR Part 35. York Medical Physics is monitoring developments and evaluating potential impacts to radioactive material licensees.
Regulatory Agencies
Access official regulatory information from the agencies responsible for oversight of radioactive material programs. Links below are provided as a convenience to assist licensees in locating current regulatory guidance and program information.
United States
Nuclear Regulatory Commission
Federal regulations and guidance
California Department of Public Health
Radiologic Health Branch
California radioactive materials regulation
Nevada Division of Public and Behavioral Health
Radiation Control Programs
Nevada radioactive material regulation
Applicable Regulations
York Medical Physics has compiled this reference list of regulations commonly applicable to radioactive material licensees. This resource is intended to assist licensees in identifying relevant regulatory requirements and should be used in conjunction with current regulations and guidance issued by the applicable regulatory authority.
Title 17 CCR, Division 1, Chapter 5
10 CFR 20 - Standards for Protection Against Radiation
10 CFR 35 - Medical Use of Byproduct Material
10 CFR 37 - Physical Protection of Category 1 and Category 2 Quantities of Radioactive Material
*This is not a comprehensive list of all regulations that may be required by your regulatory agency. The California Department of Public Health, Radiologic Health Branch, has allowed the use of electronic versions of regulations, when available. If electronic versions of any regulation are utilized, all necessary staff must be made aware of the availability of the electronic resource and be familiar with navigating the resource.. When paper copies of regulations are utilized, please review the publication date and verify the current version is on file.
Radiation Safety Tools
These tools are provided to assist licensees with routine radiation safety considerations and compliance activities. Users should verify applicability and apply appropriate professional judgment when evaluating specific radiation safety requirements.