I mean, they outline them in their fineprint. Amazon doesn't consider the unavailability of 1 EC2 availability zone an outage because their position is that you

I mean, they outline them in their fineprint. Amazon doesn't consider the unavailability of 1 EC2 availability zone an outage because their position is that you should be architecting around that. 2 or more AZ outages in the same region and it'll show up on their status page IIRC.