The Marine Stewardship Council certifies wild-capture fisheries against its Fisheries Standard (v3.1; v3.0 was published in October 2022 and updated in July 2024), built on three principles: sustainable fish stocks, minimised environmental impact, and effective management. Assessments are conducted by accredited, independent conformity assessment bodies — MSC itself does not assess — and follow a public process with stakeholder input, published reports, and an objections procedure. Certified fisheries are scored against performance indicators; conditional certification requires improvement actions within defined timeframes. A separate Chain of Custody Standard, on a segregated model, lets certified catch carry the blue MSC ecolabel on-pack, traceable back through the supply chain; both fishery certificates and CoC certificates are publicly searchable. The ecolabel supports a sourcing claim about the certified fishery and labelled product only: it certifies the state of the fishery against the standard, not the general sustainability of the selling brand, and claims beyond the certified scope are not validated by it.
Conditional relationships
Claims it may support
A relationship does not mean that the standard proves or validates every use of a claim.