Landowners who do not have their Farm Environmental Management Plan (FEMP) in with the Hawke's Bay Regional Council now face possible enforcement action and fines as of this week.
Ninety per cent of the Tukituki catchment is now covered by a FEMP after a late rush by landowners during a grace period granted by the regional council.
However, some 250 landowners had still failed to submit a FEMP by the end of the grace period last Friday.
One of the first regulations to come into effect under Tukituki Plan Change 6, any landowner with 10 or more hectares in the Tukituki catchment was required to have an FEMP in place by May 31.
Landowners with between 4ha and 10ha also need a FEMP, unless they are confirmed as a low-intensity operation.