All agencies and parties facing charges by WorkSafe after the Whakaari/White Island eruption have now pleaded not guilty.
The pleas had to be filed this week following a hearing in Whakatane in June.
One of the agencies the National Emergency Management Agency (NEMA) had already entered a not guilty plea.
But all remaining defendants had now filed pleas by notice, Judge Evangelos Thomas said in a minute released today.
"All have pleaded not guilty to the charges they face."
Twenty-two people were killed when the volcano erupted in December 2019.
Worksafe alleges 10 organisations and the island's three owners failed in their duty of care to visitors to the island.
The tourist companies facing charges are Whakaari Management Ltd, Volcanic Air Safaris Ltd, White Island Tours Ltd, Kahu New Zealand Ltd, Aerius Ltd, ID Tours Ltd, Tauranga Tourism Services Ltd, and Inflite Charters Ltd.
Also facing charges are government agencies GNS and the NEMA.
The owners of the island are James, Peter, and Andrew Buttle who are also the directors of Whakaari Management Ltd.
Each organisation faces a maximum fine of $1.5 million and the individuals could be charged $300,000.
When the charges were laid, WorkSafe chief executive Phil Parkes said it concluded the most extensive and complex investigation ever undertaken by the health and safety regulator.
The charges are centered on the everyday operations of the parties and do not relate to the rescue and recovery of victims after the eruption.
