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Compost Manufacturers - STA
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STA Certified Compost

For Compost Manufacturers

Your finished product is tested with Labs Certified STA for Compost - STA stands for “Seal of Testing Assurance”.

We are here to help you sell more compost through increased customer confidence, marketing help, and increasing the quality of your product.

STA Certified compost is certified as maintaining your government composting permits and following EPA limits on pathogens and metals.


STA Participant List:

These are the compost manufacturers who follow the requirements of the STA Certified Compost Program.


Benefits of the STA Program:

The STA Certified Compost program has many benefits for compost manufacturers like you.


Requirements for the STA Program:

Here are the expectations we have for people to follow to remain in good standing in the program.


Apply to Join STA:

Here are the simple procedures to follow to get started in adding your compost products to our list of STA Certified Compost participants.


Renew Your STA Certification:

Here are the simple procedures to follow to renew your inclusion in the STA program.


STA Certified Compost News:

Keep up to date with what’s happening with the STA program, and with other STA participants.



Hilary Nichols
Market Development Coordinator
US Composting Council
(o) 301-897-2715
(c) 919-592-3949
1053 E Whitaker Mill Road
#115 Raleigh, NC 27604