Explain rack damage assessment triage using the SEMA (UK) traffic-light system, and how it compares to RMI/US guidance, being clear about SEMA's UK origin.

Steps

1. Note upfront: SEMA (Storage Equipment Manufacturers' Association) is a UK trade body; its 'SEMA Approved Racking Inspector' (SARI) scheme and traffic-light damage classification are UK-specific, not a US/RMI standard
2. Describe the three categories: Green (no/minor cosmetic damage, within tolerance, monitor at next inspection), Amber (damage requiring repair — unload the bay and repair within roughly 4 weeks or it escalates to Red), Red (serious damage — unload and isolate immediately, repair or replace before reuse)
3. Cross-reference with RMI's own US guidance ('Guidelines for the Assessment and Repair or Replacement of Damaged Rack'), which uses similar unload/isolate/engineer-evaluate logic but does not use SEMA's exact color-coded tolerance tables
4. Flag that SEMA damage tolerances (e.g., specific mm/degree bend limits) are calibrated to SEMA/UK rack design standards and should not be applied as numeric gospel to US ANSI MH16.1-designed racks without an engineer's sign-off
5. Recommend: for a US warehouse, use the traffic-light concept as a practical triage communication tool, but have a qualified rack engineer (per RMI guidelines) set the actual go/no-go tolerances