On Aug. 30, new California regulations went into effect revising the product warning information consumers must be given under Proposition 65. That’s the 1986 voter-approved initiative mandating alerts about products containing chemicals that may cause cancer or reproductive harm.

The new rules change the wording of the warnings and specify what size they should be on a label. They make businesses choose between “full” and “short-term” warnings. In some instances they require the use of a yellow pictogram with an exclamation point surrounded by a triangle.