NRC Medical Uses Toolkit:

https://www.nrc.gov/materials/miau/med-use-toolkit.html

Colorado Department of Public Health and Environment Radiation Regulations:

https://www.colorado.gov/pacific/cdphe/radregs

Colorado Department of Public Health and Environment X-ray Machine Forms:

https://www.colorado.gov/pacific/cdphe/x-ray-and-mammography-forms-and-applications

The Joint Commission Standards (Diagnostic Imaging):

https://www.jointcommission.org/diagnostic_imaging_standards/

Prepublication TJC Standards for Fluoroscopy (effective Jan 1, 2019):

https://www.jointcommission.org/standards_information/prepublication_standards.aspx