Since Dec. 10, cadmium, a bluish-white toxic metallic element related to zinc and sometimes found in zinc ore, will no longer be authorized in jewelry in the European Union above a level of 0.01 percent of the contents. The new regulation, UE 494/2011, does not specifically mention eyewear, but Certottica, the Italian institute for eyewear certification, is advising producers to check for the presence of cadmium in their frames, so as not to risk complaints from consumers. A similar EU regulation came into force in 2004 for electric batteries and electronic devices, and is now being extended to jewelry as relatively significant levels of cadmium have been found in certain products.