Compliance
Leather Working Group (LWG) Certification Explained
LWG comes up in sourcing conversations more often than buyers can usually explain, which is a problem when it is time to specify it correctly on a tech pack. Here is what the certification actually covers, how the audit is structured, and why it sits at the tannery level of the supply chain rather than on the finished shoe itself.
What LWG is, in one sentence
The Leather Working Group is a multi-stakeholder organization that runs an environmental and traceability audit protocol for tanneries and other leather supply chain operations, and certification against that protocol is what buyers mean when they ask for "LWG-certified leather." It is an audit of how a tannery manages its environmental impact and its material traceability — water use and treatment, energy consumption, chemical management, waste handling and chain-of-custody documentation — not a test of how the finished leather looks, feels or performs physically. A tannery can be excellent at tanning high-quality leather and have no LWG certification at all, and conversely, LWG certification says nothing on its own about grain quality, thickness or finish, which are the attributes covered on our Leather Guide.
Confusing the two is the most common mistake buyers make with LWG: it answers an environmental-management question about the tannery, not a leather-quality question about the hide.
Protocol 7 and how the audit is structured
The current LWG audit standard is Protocol 7, published in 2021, which assesses a tannery across 17 distinct modules covering environmental and traceability performance. Certification under Protocol 7 is valid for two years, after which a tannery must recertify to maintain its status, which is itself a useful reminder for buyers: an LWG certificate is a point-in-time audit result with an expiry date, not a permanent designation, so the date on a certificate is worth checking rather than assumed current. The Leather Working Group has also been developing a next-generation standard, referred to as the LWG Sustainability System, though it had not replaced Protocol 7 at the time of writing.
Four categories of certification
LWG does not issue a single, undifferentiated certificate. It audits and certifies four distinct categories of operation, reflecting different roles in the leather supply chain: Leather Manufacturer (a tannery that actually produces finished leather and is the category most buyers mean when they say "LWG-certified tannery"), Leather Trader, Subcontractor, and Commissioning Manufacturer. Knowing which category a given certificate covers matters, because a Trader or Commissioning Manufacturer certificate does not represent the same audited scope as a Leather Manufacturer certificate for the actual tanning operation.
This category structure is also why asking a supplier a vague question like "are you LWG certified" produces a less useful answer than asking specifically which entity in the chain holds which category of certificate, and requesting the certificate itself for verification.
A B2B tool, not a consumer label
LWG is explicitly structured as a business-to-business sourcing tool, used by brands and manufacturers to evaluate and select tannery partners, rather than as a consumer-facing label printed on packaging the way a care label or country-of-origin mark would be. A shopper is not expected to recognize or look for an LWG mark on a shoe box, and most LWG-certified leather never carries any on-product indication of the certification at all. Its practical relevance sits upstream, in supply chain due diligence between businesses, which is also where its real cost and complexity live — the 17-module audit, the documentation burden and the two-year recertification cycle are tannery-level commitments, not something a downstream brand or organizer can claim on a tannery's behalf.
This is also the reason we do not describe ourselves as LWG-certified: as a supply chain organizer working with partner factories and tanneries rather than operating a tannery directly, that certification sits with the specific tanning operations in our network, and is confirmed and documented against the tannery actually supplying a given program rather than claimed in general.
LWG certification at a glance
| Attribute | What applies |
|---|---|
| What it audits | Tannery environmental performance and traceability, not finished leather quality |
| Current standard | Protocol 7 (published 2021), 17 assessment modules |
| Certificate validity | 2 years, then recertification required |
| Certification categories | Leather Manufacturer, Leather Trader, Subcontractor, Commissioning Manufacturer |
| Audience | B2B sourcing tool between tanneries, manufacturers and brands |
| Who holds it in a sourcing chain | The specific tannery or entity audited, confirmed per program |
General reference for planning purposes; current certification status for a specific tannery is verified against its published certificate.
Need an LWG-certified tannery sourced for a program?
Tell us your material and sustainability requirements. We will confirm which partner tanneries hold current certification and in which category.
FAQ
Common questions on LWG certification
What does LWG certification actually audit?
LWG certification audits a tannery's environmental performance and management practices — things like water use and treatment, energy use, chemical management, traceability and waste handling — against the Leather Working Group's published protocol. It is an environmental and traceability audit of the tanning operation itself, not a test of the finished leather's physical quality or feel.
Is LWG a certification consumers would recognize on a product label?
No. LWG is explicitly structured as a business-to-business tool used in supply chain sourcing decisions between tanneries, manufacturers and brands, not as a consumer-facing label printed on a shoe box or hangtag in the way a care or country-of-origin label would be. Its relevance sits upstream in the supply chain, at the tannery level.
What are the four LWG audit categories?
LWG certifies four categories of operation: Leather Manufacturer (a tannery producing finished leather), Leather Trader, Subcontractor, and Commissioning Manufacturer. Each category reflects a different role in the leather supply chain and is audited against the criteria relevant to that role.
How long does an LWG certificate last, and does Y&F Leather hold one?
An LWG certificate under the current Protocol 7 is valid for two years before recertification is required. Y&F Leather operates as a supply chain organizer working with partner factories and tanneries in the Yongjia cluster; it does not itself hold tannery certifications. Where a program requires a tannery with current LWG certification, that requirement is confirmed and sourced against the specific tannery supplying the order, with documentation provided for verification.
Related reading