Originally Posted by
fredandgingermad
All being well will be going to Canada in July with my youngest who'll be 11 months by then, have noted with interest that only Canadian car seats can be used over there,
That's not quite accurate. I looked up the Canadian regulations and for use in Canada a seat must meet Canadian safety standards and have the logo indicating that it meets Canadian standards. It doesn't have to be made or sold in Canada.
It's been a few years since I bought a car seat, but the ones we had all were labeled for US and international use as well as FAA approved. You may be able to find one in your area that is manufactured to meet standards in multiple areas.