The notes below may be of assistance. I had to dig them out and blow the dust of them, they've been hanging around for quite a long while. So check the CAO and any new data published; they could be out of date. I didn't write them, but I'm sure the bloke who did won't mind. Perhaps one of those "Baby-on-board" window placards is not a bad idea, just in case.
Reference CAO 20.16.3 (13.2).
a) An infant is not to carried in an exit seat.
b) The carriage of an infants in the arms of an adult passenger is approved provided the seat belt is fastened around the adult, not the child and a supplementary loop belt is used.. Manifest must show the name of any infant carried in the arms of an adult, bracketed. E.g. Ms. S. White (+ Grumpy).
c) The carriage of infants in bassinettes is approved, provided, that the basinet is secured so as to prevent it moving under the maximum acceleration expected and, that when a seat belt is required to be fastened the seat belt is secured so that the infant will not be thrown from the basinet under acceleration.
Notes – infant seats:- When desired, an infant may be carried in an acceptable separate child restraint system (CRS) fastened to a passenger seat. This could be forward or rearward facing and is the preferred method of restraint for an infant. A child up to age 4 would also be more effectively protected if seated in a CRS provided the weight or size of the child does not exceed the placarded limits of the device.
Any child seat must be secured to the aircraft seat in accordance with the child seat manufacturer‘s instructions or an approved alternate method. A rear facing CRS could be a capsule type or seat type and is suitable for the younger infant who is unable to sit upright.
There are also ―convertible seats which can be rear facing and then forward facing when the infant develops. Due to their design, these CRS are usually larger, and may not physically fit into some aircraft seats, particularly in the smaller regional aircraft. As for all CRS, the installation must be in accordance with the manufacturers‘ instructions or an approved alternate method.
Child and Infant seats should: be installed in accordance with the child/infant seat manufacturer's instructions; not be located in the row adjacent to an emergency exit or immediately forward or aft of such a row. This does not apply where the low seating capacity of the aircraft is such that this limitation is impractical; and not obstruct access and passageways to any emergency exit.