The published position
IARC classifies potassium bromate as possibly carcinogenic to humans (Group 2B). Banned in the EU.
IARC Monographs Vol. 73
Where it stands in law
European Union
Banned · In force
EU Regulation 1333/2008
California
Banned · From 1 January 2027
California AB 418, the California Food Safety Act
Utah
Banned · school meals · 1 August 2026
Utah HB 402
Compliance is required for the 2026 to 2027 school year.
Arizona
Banned · school meals · 1 August 2026
Arizona HB 2164
Applies to ultra-processed food served in schools from the 2026 to 2027 school year.
None of this moves a score. A law tells you what a shop may sell where you live, which is a different question from what is in the packet, and mixing the two would make two people’s scores for the same product incomparable.
How much of it counts
No amount of this one earns a discount. A genotoxic carcinogen with no acceptable daily intake, so a ceiling cannot argue for a smaller penalty. The rule is here.