The exclusion zone around the Rena has been reduced and now encompasses the area of sea within three nautical miles of the vessel.

The Bay of Plenty Regional Council's Harbourmaster amended the zone because the oil and containers coming from the grounded ship are currently contained, reducing the risk of injury or damage due to navigational safety hazards.

The exclusion zone around the Rena has been reduced.

Jennifer Roberts says vessel operators are reminded the exclusion zone could be amended again, should the situation change with the Rena or the containers.

People are being asked to check the Bay of Plenty Regional Council website or with the local coastguard on radio channels VHF 16 or 83, to find out the latest information before taking their vessels out, while the Rena response continues.

She says boat operators are reminded to take extra care around three anchoring sites, used for corralling containers that have fallen off the Rena.

Currently there are no containers in these areas, but there are unlit buoys, ropes, chains and anchors, so it is advisable to take extra precautions.

These sites are east of Rabbit Island (Motuotau Island), off the western side of Mōtītī Island and off the coast of Pāpāmoa Beach.

They are also reminded to keep well clear of all response vessels assisting with the Rena situation, and to keep an active lookout for any debris, oil or containers.

'It is important to notify Maritime New Zealand immediately if you see oil or containers in the water, by calling 0800 645 774.

'Anyone found in the exclusion zone without the express permission of the harbourmaster could be prosecuted.”

The boat ramps at Pāpāmoa East and Bell Road (Kaituna) have been re-opened as a result of the change to the exclusion zone.