Which of the following is NOT an acceptable type of marking for hazardous materials?

In the context of hazardous materials marking, the primary requirement is clarity and visibility of the information. The correct answer is that using italics is not an acceptable type of marking for hazardous materials. Italicized text does not provide the same level of visibility and distinction as bold or uppercase letters, which are both designed to ensure that the name of the hazardous material stands out prominently. Bold text enhances visibility, while uppercase letters add to the emphasis, making it easier for individuals to identify potentially hazardous substances quickly. Regular font can be acceptable but might not be as effective as bold or uppercase in terms of drawing attention. Therefore, italicizing the name can compromise the effectiveness of the warning and is not compliant with regulations governing hazardous material markings.