Article R1333-37 of the French Public Health Code
I.-When the relevant government departments, the Regional Health Agency or the Nuclear Safety Authority have evidence that a professional activity is likely to use naturally-occurring radioactive substances, the competent authority may ask the person responsible for this activity to carry out a radiological characterisation of the materials, products, residues or waste likely to contain naturally-occurring radioactive substances. II – Radiological characterisations are carried out by bodies accredited by the French…