According to OSHA, what must hazardous chemical labels contain?

The correct option emphasizes the essential components that OSHA mandates for hazardous chemical labels, which include identifying the chemical hazards, providing the manufacturer's information, and specifying the product identifier.

Chemical hazards are critical as they inform employees about the potential risks associated with the substance, allowing them to take necessary precautions. The inclusion of the manufacturer's details ensures accountability and provides a point of contact for additional information about the chemical. Lastly, the product identifier serves to clearly distinguish the specific chemical being referenced, which is vital for safety and compliance purposes.

While other options may mention relevant information, they do not align with the specific requirements set forth by OSHA. For instance, safe handling instructions and expiration dates, while important, are not mandatory on all hazardous chemical labels according to OSHA guidelines. Thus, the key components listed in the correct answer reflect compliance with workplace safety regulations.