Hexavalent chromium appears on the International Agency for Research on Cancer (IARC) Group 1 list of known carcinogens. In Europe, hex chrome is listed as a substance of very high concern (SVHC) under REACH regulations. The phase-out of hex chrome plating in the European Union is in progress, with a ban expected in 2024. In California, the California Air Resources Board is seeking an outright ban on hex chrome in decorative plating and anticorrosive coatings.