Fieldays organisers say a decision on whether this year's event will go ahead will be made within the next two weeks.
The Mystery Creek event, held annually in June, normally attracts over 100,000 people but with New Zealand currently in the red light Covid-19 setting, events can only have 100 people.
New Zealand National Fieldays Society chief executive Peter Nation said that puts organisers in a tough spot.
"We're working through the seating, what that means from a risk profile point of view but our absolute intent is to run Fieldays in 2022," Nation said.