Good Morning People.

When doing installing an alternative supply, we all know a COC is required. When doing the COC on the new alternative supply, what should be tested and what not? Is it only the supply from the alternative supply like the volts, pscc, earth loop etc? I need a bit of feedack here as it is the first time someone ask me to do a coc on an alternative supply. I have only done coc's on domestic installations so far.