Why is it a good question EmmPee? Are you expecting?
Basically the rules are roughly the same as the US:
No rear-facing seat in the front passenger seat with an airbag.
And the rest depends on the weight of your child. If he/she is under 9mths+, 9kg/20lb and uses a rear-facing child seat then it is likely that you'll need to bring your own.
Assuming your child is of normal weight then you can reserve child seats from car rental agencies. You need to reserve in advance because seats are limited and to be honest they are normally the cheapest nastiest seats possible - although they do their job.