Your regular update for technical and industry information

Your regular update for technical and industry information

USA: new California proposition 65 settlements for hexavalent chromium in leather gloves


As known, California Proposition 65 (Prop 65)1 enforcement is carried out through civil lawsuits which brought by the California Attorney General’s Office (OAG), or by a district attorney or city attorney. Private parties acting in the public interest are also allowed to bring Prop 65 lawsuits.

Since last year, hexavalent chromium (Cr VI) in leather gloves became enforcement target under Prop 65. To date, there are around thirty 60-day notices reported due to Prop 65 warning was not provided for exposure to Cr VI from gloves. 

There are three settlements2,3,4 recently reached for Cr VI violations in leather gloves. These settlements do not provide reformulation standard with a content limit for this chemical. Instead, a clear and reasonable Prop 65 warning is required for the involved products.

Cr VI is listed under Prop 65 as a chemical known to cause cancer and development effects in both males and females.

It is used widely in applications5 including leather tanning, textile dyes, stainless steel, wood preservatives, anti-corrosion and conversion coatings, electroplating. Warning should be provided for products that can expose Californian to Cr VI, as well as other chemicals listed under Prop 65.

Both standard warning and short-form warning examples for Cr VI are provided in these three settlements, aligning with the warning samples6 advised by Office of Environmental Health Hazard Assessment (OEHHA).

Standard warning sample:

Caution_symbol WARNING: This product can expose you to chemicals including chromium (hexavalent compounds), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to


Alternative short-form warning may be used for small products:  

Caution_symbol WARNING: Cancer and Reproductive Harm -


[1]  California Proposition 65

[2]  AG 2020-00398

[3]  AG 2019-02288

[4]  AG 2019-02296

[5]  OEHHA chemical factsheet on Cr VI

[6]  Sample Warnings and Translations for Businesses

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