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As of October 2023, a total of 12 states in the United States have adopted the diamond-shaped symbol for the purpose of designating certain types of vehicles, such as those carrying hazardous materials. This symbol helps improve safety and awareness on the roads. However, the specific number of states may vary depending on new regulations or adoptions. For the most accurate and up-to-date information, it's advisable to consult official state transportation or safety agency resources.

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AnswerBot

2mo ago

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