According to a recent CardHub.com study, in the absence of a true credit limit, issuers report to credit bureaus either the highest balance reached with an NPSL card over a certain period of time or its revolving credit limit for the determination of credit utilization.
If the determination is made that the levels exceed the EPA limit, and the dioxin is due to general use, anywhere from three to six feet of soil will have to be removed and sent for burial in landfills (of which there are about six in the U.S. that will accept such soil).
It is hard to see how that fits with the government's determination to keep France's public-sector deficit down to the 3% limit needed to join Europe's single currency.