http://www.vicroads.vic.gov.au/Home/...Restraints.htm
Do we need a child restraint in a taxi?
By law, taxi drivers do not have to provide child restraints or booster seats. However, they must ensure there is at least one anchor fi tting ready for passengers who wish to supply their own. If you can, take your child’s restraint with you.
Children under 1 year do not have to use a child restraint, but they must travel in the back seat.
Children over 1 year should be seated in their own seating position in a taxi, with their own properly fastened seatbelt if no suitable child restraint or booster seat is available in the taxi.