Grievance Mechanism Effectiveness: Existence Isn't the Same as Working

The OECD marks half a century of the MNE Guidelines. Its own data shows more workers seeking remedy than ever — and a grievance mechanism effectiveness gap that audits cannot see.

This month the OECD marked fifty years of the Guidelines for Multinational Enterprises — the first international standard on responsible business, and, in the OECD's words, “the north star for responsible business in an ever-changing world.”

Presenting the latest activity data at the anniversary Forum, the OECD reported a record year for its National Contact Point system — the non-judicial grievance mechanism that sits under the Guidelines' Access to Remedy pillar: 120 new cases, more than twice any prior year, and past 900 in total since 2000. The more telling figure sat underneath. For the first time, 71% of submissions came from individuals rather than NGOs or unions (OECD, 50th Anniversary Global Forum on Responsible Business Conduct, June 2026).

The people the Guidelines exist to protect are no longer waiting for an organisation to raise a concern for them. They are coming forward directly — even as access to remedy remains one of the least developed parts of responsible business conduct.

The standard has moved to remedy. The evidence base most buyers rely on hasn't.

Under the UNGPs, the OECD Guidelines, and now hard law such as CSDDD Article 9, buyers are expected to do more than publish a grievance policy. They are expected to run grievance mechanisms workers can actually reach — and to show those mechanisms work. UNGP Principle 31, under the Access to Remedy pillar, sets eight effectiveness criteria for non-judicial grievance mechanisms. Each has to be evidenced, not asserted. The same shift is visible in enforcement: US Customs and Border Protection's tightened forced-labor due diligence expectations turn on documented, defensible due diligence — not attestations.

Two themes ran through the anniversary session. First, awareness of these mechanisms is uneven — outreach reaches governments and business far more readily than the workers most exposed to harm, many of whom are nowhere near the channels that outreach runs on. Second, as the field moves from voluntary commitment to mandatory law — what one advisor called “business and human rights 3.0” — there is a real risk companies collapse the work into a compliance exercise: a mechanism that exists on paper and satisfies a filing, without reaching the people it was built for.

New laws increasingly require operational-level grievance mechanisms at the site itself, and, as the session noted, standing one up and proving it works is among the harder things a company is now asked to do.

Where the gap actually sits: grievance mechanism effectiveness

A grievance mechanism can be fully documented and still fail the people it is for. An audit confirms the mechanism exists. Only workers can tell you whether it works.

One buyer ran the WELL Cycle with Grievance Integrity across 50 strategic and high-risk manufacturing sites in six countries, reaching more than 100,000 workers. Going in, the picture looked adequate: two Operational Grievance Mechanisms, one in-house and one third-party.

Together they had received fewer than 20 cases across the entire year, from all strategic sites. Low case volume reads easily as “no problems.” It was the opposite. When workers were asked directly, more than 65% responded to the WELL Worker Survey — and reported they didn't know how to raise a concern outside the company, that formal channels felt inaccessible, and that management rarely acted on feedback (WELL Grievance Integrity case study, Labor Solutions). Silence was not safety. It was a trust gap the paperwork couldn't show.

That pattern is not exceptional. Across our programs, worker voice surfaces serious risks in 35% of sites that had already passed audit (WELL program data, Labor Solutions). Audits tell buyers what sites built. Worker voice tells buyers whether it works. And under CSDDD, LkSG, and ESRS S2, the difference is now a liability.

The eight criteria — and who can answer them

Principle 31 can only be evidenced from two sides at once. Some criteria only workers can assess — whether a channel is genuinely reachable, whether raising a concern changes anything. Others need a systems view workers have no line of sight into, such as whether resolutions meet international standards. A worker survey alone does not produce a defensible assessment; neither does a systems review. WELL Grievance Integrity measures both.

UNGP Principle 31 criterion	What it asks	Evidenced by
Legitimate	Workers trust the mechanism is fair and impartial.	Worker Survey + Self-Diagnostic Tool
Accessible	Workers can find and use it without barriers.	Worker Survey + Self-Diagnostic Tool
Predictable	Workers understand the process and experience it consistently.	Worker Survey + Self-Diagnostic Tool
Equitable	Access holds equally across worker groups.	Worker Survey + Self-Diagnostic Tool
Transparent	Workers are kept informed of how the process works and what happens to complaints.	Worker Survey + Self-Diagnostic Tool
Engagement & Dialogue	Workers can raise concerns collectively; management listens and responds.	Worker Survey + Self-Diagnostic Tool
Rights-Compatible	Outcomes meet internationally recognised human rights standards.	Self-Diagnostic Tool (systems)
Continuous Learning	Grievance data drives systemic improvement.	Self-Diagnostic Tool (systems)

What Closing it Actually Takes- Engaging Workers

WELL Grievance Integrity maps worker and site data against all eight criteria and runs through the WELL Cycle — Listen, Diagnose, Improve, Educate, Repeat — turning worker signal into diagnosed cause, site-owned action, and a WELL Intelligence trail that gets stronger every year.

For the buyer above, six months after the WELL Action Plans were issued and implemented, 83% of sites had completed their assigned actions and 72% had progressed to the next maturity level on grievance mechanisms. What that looked like site by site — and how the program evidenced all eight Principle 31 criteria — is the case study.

Fifty Years in, the Question is the Right One

The OECD's anniversary question — how do we build fairer, more resilient value chains with people at the centre? — is the question Worker-Driven Due Diligence was built to answer. We have run this work since 2013. Worker-Driven Due Diligence is not a response to regulation. It is what due diligence is when workers are at the centre.

Human rights is a practice, not a project.

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→ See what one buyer's grievance data revealed once workers were asked — and how WELL Grievance Integrity evidenced all eight UNGP Principle 31 criteria across 50 sites. Read the case study.