A yellow scaffold tag signals that a scaffold has been modified or has a hazard, so users must take specific precautions, such as fall protection, before use.

Part of a common color-coded scaffold tagging system, a yellow tag indicates that a scaffold has been inspected but is incomplete, modified, or presents a special hazard, so it may only be used with specific precautions noted on the tag — such as mandatory personal fall arrest. Green tags typically mean the scaffold is safe for use, and red tags mean do not use.
A section of guardrail is removed from a scaffold to allow material loading, so the competent person replaces the green tag with a yellow tag stating that anyone accessing the platform must wear a harness tied off to a designated anchor.
OSHA does not specifically require color-coded tags, but it does require scaffolds to be inspected by a competent person before each shift and after any event that could affect integrity; tagging systems are a widely used way to communicate those inspection results.
Only the designated competent person, or another authorized and trained individual, should inspect a scaffold and change or update its tag.
A yellow tag should describe the hazard or condition, the precautions required for use, the inspection date, and the name of the person who inspected it.
Part of SafetyIQ's EHS glossary: plain-English definitions of workplace health and safety terms.
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