What condition typically warrants the attachment of red tags to parts?

Attaching red tags to parts is a practice commonly associated with indicating that items have been designated for scrapping. Red tags serve as a clear visual signal that the tagged items are no longer suitable for use, whether due to quality issues, damage, or obsolescence. This tagging system helps prevent the accidental use of defective components and ensures that the focus remains on parts that meet quality standards.

While holding parts for inspection may involve some form of tagging, it typically does not use red tags specifically. Therefore, the use of a red tag to signify scrapping aligns with quality management practices focused on maintaining high standards and ensuring that only compliant parts are used in production.