WARNING: Cancer Risk From Diisononyl Phthalate (DINP) Exposure – www.P65Warnings.ca.gov. For a consumer product containing two chemicals with two separate exposure risks, the proposal would require: WARNING: Cancer Risk From Formaldehyde and Reproductive Risk From Toluene Exposure - www.P65Warnings.ca.gov. In its Initial Statement of Reasons, OEHHA states that the proposed regulation is necessary to stop businesses’ use of the short-form warning on large packages, in catalogs, and on-line (where there are not the same space limitations), and to discourage its use to warn prophylactically by requiring that the short-form warning name at least one chemical and clarify that use of the product can cause a chemical exposure.