The ACT's health minister says there have been several instances where the territory received fewer COVID-19 vaccines from the Commonwealth than initially intended during the rollout.
While the ACT was on target in terms of the number of vaccines it had been given from the federal government, Rachel Stephen-Smith said there had been occasions where the number of doses supplied had been lower than intended.
"Supply fluctuates from week to week, and the week we're up to now we have received the supply we were expecting," Ms Stephen-Smith told ABC Radio Canberra.
"But some weeks we have received more or less [than those targets] and that's why we're smoothing out [the number of] vaccine appointments."
The minister revealed more than 13,000 doses of the vaccine had been administered to quarantine, border and frontline health workers at the Garran Surge Centre since the rollout began in Canberra in February.
Of those, roughly 3000 had been fully vaccinated while 10,000 had received a dose.
"At the moment, the target number of receiving vaccine doses from the Commonwealth is in line with what they told us from a planning perspective," Ms Stephen-Smith said.
"We want to make sure that when [patients] turn up to the surge centre that there are vaccines there."
Ms Stephen-Smith said roughly 70 per cent of border and quarantine workers in the ACT had received their COVID vaccine since the start of the rollout.
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Last week, Ms Stephen-Smith hit out at the federal government over its handling of the vaccine rollout, after the ACT was told by the Commonwealth to hold onto additional doses they had been accidentally supplied until the following week.
"That supply has not always been consistent," Ms Stephen-Smith said last week.
"For [the federal government] to come out and blame us for holding onto doses when that it specifically asked us to do is outrageous and all it does is serve the undermine the public confidence in he vaccination program."
A war of words has been under way between federal and state and territory governments over the handling and distribution of the COVID vaccines.
Federal Agricultural Minister David Littleproud said states should "pull their finger out" in distributing the vaccine.
Queensland Deputy Premier Steven Miles said the criticism from the federal government was an attempt at a distraction from the Commonwealth's own failings.
The comments come as the ACT government is looking at setting up more mass vaccine centres in the territory.
But the timing as to when they would be available to be used would depend on vaccine supply from the federal government.
Areas such as the Calvary Public Hospital and various walk-in centres were being considered among the potential sites.
The federal government on Monday could not confirm when Australian vaccine manufacturer CSL would hit its target of 1 million vaccine doses per week.
The Commonwealth has come under sustained criticism after failing to reach its target of 4 million doses of the COVID vaccine being administered by the end of March.