https://mda.maryland.gov/resource_conservation/Pages/manure_management.aspx
https://mda.maryland.gov/resource_conservation/Documents/MDABiosecurityprrof3.pdf
The Manure Transport Program helps cover the cost of transporting manure to farms with low phosphorus fields or to alternative use facilities. Payments of up to $22.50/ton are available to eligible farmers and manure brokers.
Read more http://extension.umd.edu/node/17376