Mamaku-based farmers John and Wendy Roe said over the years their family had been farming in the Rotorua catchment they had fenced off and protected significant native bush areas on their land.
"We believe that such land retirement should be acknowledged under the rules," they said in their submission.
"We had a sustainable plan going forward, whilst other land owners did not.
"Then the regional council came up with an environmental plan which requires us all to further reduce our environmental footprint with no allowance for what has already been done voluntarily.
"We support the right environmental solutions for Lake Rotorua but the solutions must be fair and equitable across the entire community," they said.
Submissions were also heard from Dr Warren Parker for Crown research institute Scion, Corina Jordan on behalf of Beef + Lamb New Zealand, local dairy farmer Sharon Morrell, Stuart Morrison and Brown Owl Organics.
The hearing was adjourned at lunchtime today and will continue on Monday with a full day of submissions to be heard.
More information can be found at www.boprc.govt.nz/pc10hearings.