Minimum classifications and other particularities of Annex VII of the CLP Regulation
Moving from classification under the Dangerous Substances/Preparations Directives to classification under the CLP Regulation

Annex VII does not always give strict equivalence, as some hazard categories in the new classification overlap with several hazard classes in the old classification. This is the case for acute toxicity and specific toxicity.

For example, for acute oral toxicity, the classification Xn, R22 ("harmful if swallowed") may become either Acute Tox. 4, H302 ("harmful if swallowed") or Acute Tox. 3, H301 ("toxic if swallowed"). The figure below shows these overlaps for acute oral toxicity.