Prime Minister Scott Morrison has been speaking in Rockhampton, Queensland to announce funding for Australia's beef industry.
He was also questioned about the two-week ban the federal government placed on Australians attempting to return home from India and the potential punishments they face.
Despite the Biosecurity Act setting out punishnments of $66,000 fines or up to five yeras in prison, Mr Morrison said it was highly unlikely they would be enforced.
The sanctions are there. They exist. But they will be exercised proportionately and responsibly," he said.
"Those sanctions have been in place now for 14 months and we haven't seen the extremes of those sanctions being required.
"I think it would be a very remote circumstance that would see them imposed, but they're imposed seriously because we need to prevent people coming who have been in India during the last 14 days because the risk of infection that they're bringing is very high."
Mr Morrison said he doesn't "want to see them necessarily imposed anywhere because I don't want to see people breaching the rule".
"I think it hasn't been helpful for these things to be exaggerated," he added.
"These powers have been around for 14 months and they have been used responsibly and proportionately and effectively and that is what we are doing now."
The PM said it was his "responsibility to do everything I can to prevent a third wave in this country".
"I make no apologies for that. I thank, particularly the Indian community here in Australia and overseas, for their patience and their understanding," he said.