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Just over one-third of our wood supply (logs and chips) comes from our own certified timberlands. We buy another third from other certified forests and the rest primarily from small noncertified forests located near our mills.

Whether certified or not, it's important to us that all of the wood used to make our products comes from legal, noncontroversial and sustainable sources. We achieve this through SFI fiber sourcing and chain-of-custody certification.


We certify all our manufacturing facilities and label most of the forest products we make in North America to the SFI Fiber Sourcing Standard, a third-party certification that supports responsible forest management and fiber procurement not only on SFI-certified lands but also on uncertified lands. This certification requires that we:

  • Use trained loggers.
  • Engage in outreach and education with forest owners on sustainable forestry practices.
  • Support scientific research to broaden the practice of biodiversity.
  • Require our suppliers to follow best management practices.

Through its Fiber Sourcing Standard, the SFI program stands apart from other independent forest-certification programs by providing assurance that the fiber we use, certified or not, comes from responsible noncontroversial and sustainable sources. By certifying our manufacturing facilities to this standard, we demonstrate to our customers that we work with all of our suppliers — the majority of whom are small family forest owners — to encourage broader implementation of sustainable forest management practices.

We also have a purchasing preference for wood certified under the American Tree Farm System, targeted at family forest owners and recognized as a functional equivalent by SFI and PEFC.

View our data related to promoting sustainable forestry

View our fiber-sourcing certificates

Encouraging Legally Sourced Wood

It is our longstanding policy and practice to ensure that we and our fiber suppliers comply with all laws and that our procurement practices do not cause or encourage the destruction of forest areas at risk of loss due to illegal and unsustainable practices.

We do not knowingly purchase or use wood, wood fiber or products for distribution that originate from illegal logging. We conduct a due-diligence assessment and document the species and country of origin of our products on our Product Environmental Profiles. Our responsible fiber sourcing practices are guided by our Wood Procurement Policy.

We also maintain compliance with domestic and international laws related to the use of illegal timber, including the Lacey Act in the United States and the European Timber Regulation. The Lacey Act, amended in 2008, combats global trafficking in illegally taken wildlife, fish and plants, as well as illegally sourced wood and wood products. The European Timber Regulation was adopted by the European Union in 2013 and, like the Lacey Act, makes it unlawful to trade in wood from illegal sources.


While all of our fiber comes from responsible sources, not all of it is certified. Certification systems offer chain-of-custody certification for tracking the certified volume of fiber entering a facility. This ensures all claims and labels related to certified content are accurate.

Chain-of-custody certification is often misunderstood as a guarantee that the fiber in a specific product comes from certified sources. Instead, chain of custody is a documentation process that uses credit-based accounting to track the percentage of certified fiber coming into a mill. This allows our mills to provide customers with chain-of-custody claim statements identifying the amount of certified content contained in a shipment. Our senior management team is committed to implementing chain-of-custody at selected sites and, while those sites are certified, maintaining chain of custody requirements in accordance with applicable standards.

For example, in a mill where 70 percent of the total volume of material entering is certified, the chain-of-custody standards allow products sold to either have a claim statement and label stating that the products are 70 percent certified or have a claim statement and label for 70 percent of the products sold stating that those products are made from 100 percent certified fiber.

In addition to tracking certified and noncertified volumes entering a mill for the purposes of claims and labels, chain-of-custody standards require participants to implement due-diligence systems or risk assessments to avoid noncertified raw materials coming from illegal or irresponsible sources.

All our cellulose fibers mills and several wood products facilities, export log facilities and other selected manufacturing facilities are certified to SFI, PEFC or FSCTM chain-of-custody standards, as well as the SFI Fiber Sourcing and FSCTM Controlled Wood standards.

Our certified operations are audited by independent third parties to verify the operations satisfy the requirements of the standards.

View our chain-of-custody certificates

Read our FSC™ Controlled Wood Declaration