Canberra's public schools will get improved ventilation through building works, installing carbon dioxide monitors, increased maintenance for heating, ventilation and air conditioning systems.
Funding for public school relief teachers will be boosted to help cover staff absences and enable staggered breaks.
Public schools, early childhood education and care services and low fee-paying non-government schools will also get more masks and hand sanitiser.
The government will spend $500,000 on additional shade structures in public schools so they can use outdoor learning spaces.
Two more senior psychologists will be brought on to provide online counselling and support for public school students.
The ACT government says it is working with Catholic and independent schools sectors on how it can support their infrastructure needs for a COVID-safe return to on-campus learning.
"The ACT government will continue to follow the advice of health experts to ensure the safety of all schools and early childhood education and care services and will consider any future costs as they arise," an ACT government spokeswoman said.
Year 12 students have started attending colleges and schools from this week in preparation for the AST and for vocational and practical classes and assessments.
Year 11 can return to on-campus learning from October 18. From Monday, October 25, preschool, kindergarten and years 1, 2, 6, 9 and 10 can return to school.
Early childhood services will also open to all children from October 25.
By November 1, the remaining students will be allowed to return to face-to-face learning.
Students in years 7 to 12 and all school staff must wear masks at school in line with the health direction.
Students in years 3 to 6 will be able to wear masks at the discretion of their carers, while masks are not recommended for children in year 2 and below.
The chief health officer's guidelines for schools aims to reduce the risk of COVID-19 transmission and avoid whole schools being shut down for long periods of time.
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