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STA Certified Compost
Requirements for Compost Manufacturers
Specifics may be found in the full STA Certified Compost Rules
1) Meet the US Composting Council’s definition of compost.
2) Stay in compliance with all federal, state, and local regulations and permitting to which the STA Certified Compost product(s) is(are) subject. Immediately inform the US Composting Council if an issue arises.
3) Use STA Certified Compost approved labs for testing. These labs use TMECC test methods and are held to high standards through the STA’s CAP program that tests the labs against each other.
4) Test STA Certified Compost product(s) according to the frequency determined by the annual wet tonnage finished compost manufactured. Manufacturer and US Composting Council both receive the test results directly from the labs.
8) Compost manufacturers pay US Composting Council yearly fees for managing the STA Certified Compost program.
9) Renew contract and payments yearly for each product.
** Please note-
Separate compost products are defined as being any one of the below:
Derivative products are defined as being STA Certified Compost products that are then changed in any one of the ways below, which do not get re-tested and do not get a new Compost Technical Data Sheet (CTDS):
Mulch cannot be registered. A registered compost may be screened to create coarse mulch-like material as a derivative product, but it must match our definition of compost prior to screening.