This would fall under the ongoing Wetlands rulemaking process at NHDES. Information on that process can be found here:
https://www.des.nh.gov/organization/...mprovement.htm
Also keep an eye on this committee here:
http://www.gencourt.state.nh.us/stat...mmittees/1400/
A large part of the focus of this Committee is a potential overhaul of the way the State of NH handles shoreline structures permitting.