Hazmat drivers, can poison 6.1 be hauled together with either flammable 3 or corrosive 8?

I have always been under the impression that poison can not be put in the same trailer as flammable or corrosive, as according to the segregation chart, there is an “X” in the column. On the chart though, it seems only to be referring to inhalation hazard class 6.1, not regular poison/toxic liquid. However, there is an addition area on the bottom of that chart that refers you to note C, which states “No applicable segregation restrictions in §177.848(d).”
Super confused by the whole thing, if anyone has some clarity on this it would be greatly appreciated.