Many states have regulations on weed control products, but they are frequently unable to enforce them. We have customers in every state.
Permit required, contact your regional staff here: https://www.michigan.gov/documents/deq/wrd-permit-staff_402908_7.pdf
Inland Lakes and Streams Permits via MiEnviro Portal: https://mienviro.michigan.gov/ncore/external/home
If you find out what permitting guidelines you have, please do us a favor and let us know at info@lakebottomblanket.com.