Certifications & Affiliations
Hsu Leaf Compost is STA Certified through the United States Composting Council (USCC)
Learn more about STA certified products by clicking here
As of January 2012, Hsu Leaf Compost was accepted into the U.S. Department of Agriculture BioPreferred program as 100% BioBased through extensive lab testing.
Learn more about the USDA BioPreferred Program by clicking here