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Compost Manufacturers - STA Benefits - Quality
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STA Certified Compost

Benefits For Compost Manufacturers
Quality - Confidence - Marketing


Quality- Our STA program helps you stay on top of the quality of your products through:


  1. Test Methods: Creating and frequently updating lab testing protocols for compost that are required and standardized across all STA labs, called TMECC.
  2. Labs Tested: Holding STA Compost-Certified Labs to high standards through the STA’s CAP program that tests the labs against each other, and provides advice if lab methods need adjusting to increase lab quality.
  3. Sampling Guide: Creating a list of guidelines for manufacturers to take a quality sample of compost for testing.  A representative test starts with a representative sample.
  4. Frequency: Testing your compost frequently, according to the frequency determined by the annual wet tonnage manufactured.  Manufacturer and US Composting Council both receive the test results directly from the labs.
  5. Best Use: Defining what types of compost test results are best for different applications through the Compost Consumer Use Program (CCUP)