We encourage and support composting on farms by providing technical assistance to compost operators as well as an Agricultural Composting Registration process that allows qualifying farms to register their operations with MDAR under an Agricultural Waste Composting exemption in MassDEP's Site Assignment Regulations for Solid Waste Facilities (310 CMR 16.00). Under that exemption, any farm that wishes to compost organic materials other than those that are generated on their own farms, must register their operation with MDAR.
