Under new EU rules on packaging and packaging waste, manufacturers of crystal glass packaging are permitted an extended derogation until 2029 to continue marketing products containing lead, cadmium, mercury, and hexavalent chromium at concentration limits higher than those mandated by the updated regulations. This transitional measure recognizes the technical and economic challenges in reformulating crystal glass products to meet stricter limits while allowing time for industry adaptation. The derogation applies to crystal glass products already in production or under development during the regulatory transition period.