TLV: Transparency in the timber sector
The Timber Legality Verification (TLV) is a certification system aimed at proving the legal origin of timber products. TLV was developed to provide assurance to companies and end users that timber complies with applicable laws and regulations in the country of origin. This makes TLV an important tool in the fight against illegal logging and promotes transparency within the timber supply chain.

Legal timber with proven provenance
Timber with a TLV certificate comes from forests that are legally managed. Compliance with national and international regulations is verified throughout the entire process – from felling to finished product. This ensures that TLV-certified wood meets requirements for legality, traceability and documentation.

LTL Woodproducts: focus on sustainable use
As TLV-certified companies, Leyenaar Taapken Lamaker B.V. and Leyenaar Taapken Agencies B.V. (together LTL Woodproducts) offer wood whose legal origin can be clearly demonstrated. In this way we support responsible forest use and provide a reliable alternative for customers who value origin and regulatory compliance.

*View our TLV certificates showing our certificate numbers: