So, as I’m unqualified to answer, I’ve answered yours, so can you answer mine?
It would be a pleasure
Before I answer, I might point out that it may be perceived by some that you asking this is a low, dirty tactic, designed to both pull rank, and expose inexperience in your opponent. Typically deployed by someone who is already on the ropes in an argument, it's a last ditch attempt to save face before they flounce off in a huff. The danger with using this tactic, is once the opponent's inexperience is exposed, it highlights the attacker's own short comings should he/she fail to win the argument.
As you are an esteemed member of the forum I will assume that this is not the case, and that you are merely curious.
I have never changed a board to an installation with missing CPCs on lighting circuits, in fact I have only done one board change, and that was more than a year ago. I don't do EICRs either, unless you count the one I did before the board change. I have just 3 short weeks training, about 2.5 years ago, and consider myself mainly self taught. I am not on a competent person scheme, and use a 3rd party certifier for any notifiables. The bulk of my electrical work is minor stuff, extra lighting, sockets and so on, the odd bathroom or kitchen, plus some fault finding. I still do general handyman work as well, boarding lofts, repointing and so on, as I don't yet have enough regular electrical work to live off.
So a relative newcomer to the industry I'm sure we would all agree. I hope that answers your question, plus a bit more, just in case you were curious.
Now, what about my questions. No need to be qualified to do EICRs Midwest, just competent, so I hear. I'll give you a clue. You can find the answer to the coding question on P15 of the Best Practice Guide 4: