Yes, the midwives here have hospital privileges. However, there are three hospitals in the city of Calgary, and each one has only one or possibly 2 rooms with bathtubs in them. They try to give these rooms to midwife clients but there is no guarantee (and I honestly can't recall if waterbirths are 'allowed' in hospital). The birth center has nice big jetted tubs though, and I know for sure they do water births there, and at homebirths, and about 70% of their births overall are in water.
Hope that helps!