MRB approval is the documented authorization of a disposition for nonconforming material or product.
MRB approval is the documented authorization by a Material Review Board to proceed with a disposition for nonconforming material, parts, assemblies, or product. It confirms that the nonconformance has been reviewed by the appropriate roles and that the selected disposition is allowed under the organization’s defined process.
In manufacturing quality workflows, MRB approval is commonly tied to a nonconformance report, quality hold, inspection finding, or supplier issue. Typical dispositions may include rework, repair, use-as-is, scrap, return to supplier, or further evaluation. The approval record often identifies the item, defect or deviation, disposition decision, approvers, dates, and any required follow-up actions.
MRB approval is not the same as routine inspection acceptance. It applies when material does not meet a requirement and needs a controlled decision before movement, use, or closure. It also should not be confused with corrective action; CAPA or RCCA activities address causes and recurrence, while MRB approval addresses the disposition of the affected material or product.
In MES, QMS, ERP, or traceability systems, MRB approval may control whether inventory is released from hold, routed to rework, scrapped, or linked to quality records for later review.