Article R1334-13 of the French Public Health Code
Work carried out in a dwelling or building constructed before 1 January 1949 that causes dust emissions is presumed to be at risk within the meaning of article L. 1334-11 if the measures taken to protect occupants are inadequate. The presumption of risk is lifted when a lead exposure risk report certifies that the coverings concerned by the work do not contain lead in concentrations exceeding the thresholds defined by…