Are you sure? Here's the sentences I read: "when ... pose immediate jeopardy, CMS requires the laboratory to take immediate action to remove the jeopardy" ... "10 days to with a credible allegation of compliance and acceptable evidence of correction".

I see the part below that makes it sound like just a plan has to be filed, but I interpreted the text above as meaning they needed to comply within 10 days to even file the form. My interpretation may be wrong.

Less than 100% sure, but 10 days to file a POC was always my experience. Most issues can't be provably corrected in that timeframe.

All the news articles I'm reading say that they actually have to remedy the problems within 10 days, not just file a form with their plan. But those articles also say that the investigation was limited to a secondary facility, so the impact may be smaller than I predicted.