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One hundred percent of our timberlands are certified to sustainable forestry standards:

  • Our North American timberlands are independently certified to the requirements of the Sustainable Forestry Initiative® Forest Management Standard.
  • The lands we manage in Uruguay are certified to the Uruguayan sustainable forestry standard, a system recognized by the Programme for the Endorsement of Forest Certification.

View our timberlands certification data


We believe sustainable management practices will ensure healthy, abundant forests today and into the future. There are a number of forest certification programs available for use in the United States and Canada, including:

  • Programme for the Endorsement of Forest Certification: PEFC is a global umbrella organization that evaluates and recognizes forest certification systems demonstrating compliance with PEFC principles. With more than 672 million acres of certified forests, PEFC endorses nearly 37 sustainable forest management standards worldwide. 
  • Sustainable Forestry Initiative: SFI is a nonprofit, independent certification system. Developed specifically for North America, SFI is the largest certification program in North America, with more than 280 million acres certified. SFI is recognized by PEFC. 
  • American Tree Farm System: The ATFS is the oldest and largest certification system for small, private landowners in the United States. Family forest landowners own nearly two-thirds of commercial U.S. forestlands. Approximately 22 percent of our wood fiber comes from ATFS-certified family forest owners. ATFS is recognized by the SFI standard. 
  • Canadian Standards Association Sustainable Forest Management: CSA is Canada’s official national standard for sustainable forest management. Widely adopted by major industrial forestland managers in Canada, this standard addresses Canada’s unique cultural and land-ownership issues. CSA is recognized by PEFC.
  • Forest Stewardship Council International: FSCTM International sets national and regional standards for multiple independent certifiers throughout the world. FSCTM International has approximately 465 million certified acres worldwide, with 35 million acres in the United States. FSCTM International recognizes other FSCTM standards but is not recognized by PEFC.

Today, only 11 percent of the world's forests are certified, with the vast majority of the certified acreage in the Northern Hemisphere. In the tropics, where deforestation prevention was a main reason for the original emergence of forest certification systems, only about 2 percent of forests are certified.

View our forest certification certificates


We are a strong supporter of the Sustainable Forestry Initiative. SFI is a consistent, science-based standard that allows us to offer a reliable supply of quality, certified products at competitive prices. Our decision to choose the SFI standard has support from our customers worldwide.

We also believe the existence of multiple certification systems is advantageous for several reasons:

  • Multiple programs encourage greater use of responsible practices worldwide, across all forest ownerships.
  • Different programs accommodate the varying situations, resources and needs of a variety of forest ownership types (government, private, family).
  • Multiple programs offer manufacturers and their customers greater flexibility in meeting consumer demands.
  • Competition encourages all programs to continually improve over time.



We do not grow genetically engineered trees. Genetically engineered plants are regulated by law, and none have been approved for commercial use in our supply chain. In 2010, the report of the Conference of the Parties to the Convention on Biological Diversity described a precautionary approach supporting the use of genetically modified trees if sufficient safeguards are in place. We support this position and will continue to support scientific research to understand the benefits and risks associated with commercial use of genetically modified trees.

To produce seeds that grow superior trees, we operate seed orchards where we use traditional techniques of selection and cross-pollination. We grow seedlings in our own nurseries and purchase seedlings from others. We also use varietal seedlings, often referred to as clones. These varietal seedlings have genes from the natural population of the species. Use of varietal seedlings is commonplace in the Southern Hemisphere and is increasing in the United States.