It comes as Euroa MP Steph Ryan calls on the Victorian government to increase its use of the resource.

NSW Premier Gladys Berejiklian said this week she wanted rapid antigen testing to form "part of our fight against COVID".

"We are keen to have rapid antigen testing at key worksites, and also at school campuses when year 12 goes back," she said.

"We accept it's not as accurate as other types of testing - but at least it does give us an indication of where cases might be."

Euroa MP Steph Ryan wants the Victorian government to roll them out in high-risk settings.

"Rapid antigen tests are inexpensive and have proven to work best during the early stages of infection when the viral load is at its highest," she said.

"While the PCR test can take hours to process, rapid testing has the potential to turnaround results in just 15 to 30 minutes.

"We need a pathway out of constant lockdowns and rapid testing is an obvious part of that plan."

The National Road Transport Association also wants the testing for freight and logistics workers if governments are to keep new test rules in place.

"We agree with the national requirement for seven-day tests of drivers, which all states and territories opted for at the start of the pandemic," chief executive Warren Clark said.

"But a three-day testing requirement, as exists in Victoria and as coming into effect in Queensland ... is a bridge too far."

Victorian Chief Health Officer Brett Sutton said its use was "context-specific" due to its lower accuracy compared to PCR (polymerase chain reaction) tests.

"You need to be in a situation where the benefit of getting that result within 10 or 20 minutes outweighs missing those few (positives)," he said.

The Royal College of Pathologists of Australasia supports this view and a Victorian Department of Health spokesperson elaborated.

"In Victoria's current low prevalence environment, there are challenges in using antigen tests, as while they can produce results quickly, they are not as accurate as PCR tests in detecting COVID-19 infection," the spokesperson said.

"Clinically backed PCR tests are considered to have very high fidelity.

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"Individuals do not have to wait a significant time for test results, as the vast majority of COVID-19 test results using PCR tests are returned in Victoria within 24 hours."

The Therapeutic Goods Administration has not approved home use of rapid antigen testing, but in the United Kingdom, kits are done regularly at home and indicate within half-an-hour if a user is positive for COVID.