The Department of Immigration and Citizenship has updated it's website (current Feb 2010) where it concerns volunteers, below we have provided the latest information. Generally speaking if a person's visa allows them to do paid work then they would automatically be able to volunteer. The only visas that need checking are those visas where paid work is not allowed.
Note: It is acceptable, under the conditions of the Tourist visa, to receive meals, accommodation and/or reimbursement of out-of-pocket living expenses in return for voluntary work.
For further information, visit www.immi.gov.au
Some of the more uncommon types of visas are covered below: