DINP scored a battle victory in California’s Prop 65 war on DINP.  It was reported last week that the California Office of Environmental Health Hazard Assessment (OEHHA) granted a safe use determination (SUD) request for vinyl roofing containing DINP.

Why is this so important?

The OEHHA hasn’t issued an SUD in 12 years.  And while the SUD is only related to DINP’s use in vinyl roofing, it sets an important precedent for future rulings on a possible SUD for DINP in general.

Here is a quote from Bill Hall of Venable LLP:

This decision represents OEHHA’s best judgment that a Prop 65 cancer warning or reformulation is not required for the use of DINP in vinyl roofing. It represents a real breakthrough in using meaningful exposure analysis to determine the safe use of Prop 65 chemicals in California products.

OEHHA informs me that it intends to issue final decisions by the end of the year on the pending SUD requests for DINP in vinyl flooring, a vinyl carpet tile product, and a vinyl fabric product.

We will keep you posted as we learn more about SUD rulings by OEHHA on products containing DINP.

And a big thank you to the Chemical Fabrics and Film Association (CFFA) for submitting the SUD request and seeing it through to the end.

Here are the important documents related to this ruling:

CRNR Notice – SUD – Roofing
SUD 3 Roofing
Formal Letter