How should a QS deal with conflicting label information between multiple sources?

• A. Always use the label from the first source
• B. Disregard the label if multiple sources conflict
• C. Follow the most lenient instruction
• D. Use the most restrictive instruction and follow the label of the product actually in use

Answer: (D)

When information about how to handle a product conflicts across sources, the safest and most compliant approach is to treat the most protective instruction as binding and to follow the label of the product actually in use. Product labels are legal documents that spell out exactly what you can and cannot do—picking the most restrictive rule across sources helps protect workers, bystanders, and the environment and keeps you within regulatory requirements. In practice, you base your actions on the specific product’s label, and if other sources suggest different requirements, apply the stricter rule. Choosing the first source, ignoring the label, or following the lenient instruction would all increase risk and potential noncompliance.