Many states have regulations on weed control products, but they are frequently unable to enforce them. We have customers in every state.
Utilization of any sort of bottom/benthic mat or barrier on public lakes and streams requires an approved permit from the Wisconsin DNR under Ch. 30, Wis State. However, if the width is less than 30 feet along the shore, no permit is required.
No permit is required to install bottom/benthic mats or barriers in waterbodies which meet the legal definition of a private pond or lake.
See these websites for more details: https://dnr.wi.gov/topic/waterways/ ; https://dnr.wi.gov/lakes/plants/
Online permits available and application checklist : https://dnr.wi.gov/topic/waterways/documents/PermitDocs/IPs/IndividualPermitAll.pdf
If you find out what permitting guidelines you have, please do us a favor and let us know at info@lakebottomblanket.com.