Australia's largest agricultural field days will ban people from attending if they have recently visited Indonesia, due to the risk of foot and mouth disease.
AgQuip is due to start next week in Gunnedah in north-west NSW, and usually draws thousands of attendees from across Australia.
But this year, anyone who has visited Indonesia in the seven days prior will be refused entry.
ACM Rural Events organiser Kate Nugent said the rule applied to visitors and all other stakeholders.
"These are our exhibitors, these are our contractors, subcontractors, agents," she said.
"We need to do all that we can to create that awareness."
Ms Nugent said the NSW Department of Primary Industries had provided advice about how to reduce the risk of foot-and-mouth spreading through the event, and into Australia's agricultural community.
She said some livestock breeders had decided against bringing their stock this year due to heightened concerns about the potential spread of the disease.
"There are others that are very confident that they will put all measures in place to protect their stock," she said.
AgQuip will run for three days from August 16 and will be the first edition since 2019 due to the COVID-19 pandemic.
Ms Nugent said ticket sales had been "excellent".
"They've come from right across Australia which is very pleasing to see," she said.
