The problem is it doesn't have a minimum quantify before reporting is required, so 1 pay per trillion of any of 10,000 different substances triggers the warning, so there isn't anything that doesn't require the warning.

The standard essentially requires an unachievable level purity along every step of the manufacturing and distribution process in order to NOT have the label.

The result is over-labeling, which results in products that we should actually be concerned about sneaking into our homes because we ignore warning labels.

Ok but can we make fun of the fact that they aren’t required to specify which material? Like let me decide if it carcinogenic enough

Except the law was really poorly worded with no downside for false reporting. As a result literally everything has the label on it, up to and including a generic message at the front doors of the store telling you that going in the building will cause cancer and reproductive harm.

But it doesn't work when every manufacturer puts those stickers on literally everything just in case.