It’s hard to sympathise with Amazon, but it seems very wrong to put the burden on the point of sale vs the supplier, especially for smaller stores.

The burden of not putting dangerous products out in the market should lay on the manufacturer, through certifications or some form of safety requirements. In this case no doubt Amazon has to pay if they’ve acted as an importer, but you wouldn’t expect your supermarket to randomly sample all their product.

maybe the US regulations need an update to make school supplies a more strict category?