Department of Labour inspectors will be visiting farms around the country from April to make sure farmers and their workers are using quad bikes safely.
The move is part of a new push by the department to reduce the 850 injuries and five deaths on average each year from quad bike accidents on farms.
It says where inspectors find people using the bikes in a dangerous way they may take enforcement action. That could range from warnings or penalties, to stopping the vehicles being used until safety issues are fixed.
The department launched a harm reduction campaign late last year, to raise awareness about quad bike safety.
It has four key messages: choosing the right vehicle for the job; always wearing a helmet; keeping children off adult quad bikes; and making sure riders are trained or experienced enough to do the job.