Which of the following is NOT a requirement for chemical labels?

Chemical labels serve a critical role in communicating information about hazardous materials to ensure safety in the workplace. A requirement for a chemical label typically includes elements such as contact information, warnings about the chemical, and hazard statements that describe the nature of the risks associated with the chemical.

Specifically, contact information is essential so that individuals can reach out for further details or assistance if needed. Warnings about the chemical provide immediate awareness of any dangers it may pose, helping workers to take appropriate precautions. Hazard statements give specific details about the type of hazard—such as flammability, toxicity, or reactivity—allowing users to understand how to handle the chemical safely.

Expiration dates are not universally required for chemical labels. While some specific types of chemicals (like pharmaceuticals) may include expiration dates for regulatory compliance, this is not a standard requirement for all chemicals under OSHA guidelines. Hence, the absence of an expiration date from the options provided clearly indicates that this element is not a fundamental requirement for chemical labels, making it the correct choice.