- Who Are You?
- Develop Professionally
- Produce Compost
- Use Compost
- Research / Educate
Specifying STA Certified Compost
DOTs across the country have shown their confidence in the efficacy of the Seal of Testing Assurance program’s STA Certified Compost products by requiring its use on projects under their jurisdiction. We gathered case studies linked here to share with you.
Landscape architect, engineer, and Department of Transportation's shared specifications will help you get started in specifying STA Certified Compost for your project. For ease of assuring compliance, many Department of Transportations have customized lab Compost Technical Data Sheets (CTDS) through the STA Certified Compost program that show whether each parameter tested meets the specifications for that state DOT's compost use.