What color sign indicates radioactive materials?

The yellow and white color scheme is specifically designated for radioactive materials. The yellow background is a recognized standard in the United States and globally for marking radioactive substances, ensuring quick visual identification. The contrasting white symbols and text make it clear that the material is hazardous and requires special handling and precautions. This color coding is part of larger safety protocols aimed at minimizing risks associated with exposure to radiation, thus enhancing safety for workers and the public alike. The design helps to communicate the potential dangers effectively, which is crucial in transportation and storage situations.