This is an exemption under category B (infectious substances allocated UN3373), but only applies if there is a professional assessment (e.g. from a doctor) stating that the patient samples to be shipped have no or minimal likelihood of containing a pathogen.
This assessment should be made on the basis of the known patient history, symptoms and individual background of the patient.
When being shipped, the samples must be packaged in accordance with P650. This exemption is not subject to the regulations of ADR and can therefore be transported with a courier driver with the label "EXEMPT HUMAN SPECIMEN" or "EXEMPT ANIMAL SPECIMEN".