Sustainable development Sustainable development TERRE DE LIN is committed to sustainable development for many decades. The co-operative structure and values it carries, naturally respectful flax/linen cultivation environment, commitment to advancing its practices, are the engines of sustainable development at TERRE DE LIN. Traceability From field to flax/linen sliver, TERRE DE LIN ensures complete traceability. Engaged in Agriconfiance approach, the cooperative is certified according to the NF V01-005 standard, equivalent to ISO 9001 applied to agriculture and involving producers.