2009 California Health and Safety Code - Section 114840-114845 :: Article 1. Declaration Of Policy

114840.  The Legislature finds and declares that the public health
interest requires that the people of this state be protected from
excessive and improper exposure to ionizing radiation. It is the
purpose of this chapter to establish standards of education,
training, and experience for persons who use X-rays on human beings
and to prescribe means for assuring that these standards are met.

114845.  The Legislature finds and declares that the public health
interest requires that increased steps be taken to ensure the
accuracy of mammograms, including increased inspections and
calibration of equipment, competency requirements for radiologic
technologists, accreditation of mammography facilities, and the use
of computers to read mammograms.