What should a K-12 substitute teacher do if they don't receive IEP notes?

I recently ran into a specific issue while substitute teaching: the substitute teacher didn't know that several students in the class had IEP accommodations, so they collected the class quiz at the standard time, which led to parent complaints. On the surface, it looks like a single point of failure, but it actually involves processes, systems, and on-site communication. Instead of jumping to…