[nanidin]

When something is expunged or sealed, is it required that that non-government entities purge the records also?

For instance, it's common for local news companies to report arrests & mugshots on their websites. I'm assuming there are similar aggregators for arrests and convictions that span larger areas than a single news company, and these are the same people that service background checks.

What obligation(if any) do they have to respect the fact that a conviction has been expunged or sealed by the courts?