SFI can refer to two different things: the SFI Foundation and the Sustainable Forestry Initiative.

The SFI Foundation is a non-profit organization that issues and administers standards for the quality assurance of specialty performance and racing equipment. They offer programs such as the Incident Response Training Program for bringing safety awareness to race track personnel.

The Sustainable Forestry Initiative (SFI) is a comprehensive system of principles, objectives, and performance measures developed by professional foresters, conservationists, and scientists, among others, that combines the perpetual growing and harvesting of trees with the long-term protection of wildlife, plants, soil, and water quality. The SFI program provides a framework for foresters, landowners, loggers, and wood and paper producers to satisfy the growing demands of society for responsibly produced products, scientifically sound in-woods management, and to be verified by third-party program audit systems. The SFI Standard is based on 13 Principles, 15 Objectives, 37 Performance Measures, and 101 Indicators that address economic, environmental, cultural, and legal issues, in addition to a commitment to continuously improve sustainable forest management. Organizations certified to the SFI standards conserve wildlife and water, practice climate-smart forestry, and support relationship building with Indigenous communities. SFI standards have become the fastest-growing, highly trusted solution that can support a growing need for products from the forest, as the drive to reduce carbon pollution and waste intensifies.