Are these new circuits, or are they just additions or alterations to existing ?-If there already was a small ring that has been re-purposed, and/or  an existing light circuit extended, then arguably these are not new circuits, and in England at least not necessarily notifiable under part P, perhaps saving some fees and a bit of aggro, though if the sparks is with Niciec or Napit et al he or she can self notify anyway.

If you are in Wales it is the same, but in Scotland it isn't and in Northern Ireland generally domestic wiring is not under building regs at all.

However, for any wiring claiming to be to any edition of BS7671 that permits ring finals, expect as a minimum some continuity and insulation test results and a Zs, I'd really expect an installation cert rather than minor works, but you are allowed to invent your own certs (and as an example NICIEC do ), but they must have the same or more info on cf the bare minimum.

Mike

Are these new circuits, or are they just additions or alterations to existing ?-If there already was a small ring that has been re-purposed, and/or  an existing light circuit extended, then arguably these are not new circuits, and in England at least not necessarily notifiable under part P, perhaps saving some fees and a bit of aggro, though if the sparks is with Niciec or Napit et al he or she can self notify anyway.

If you are in Wales it is the same, but in Scotland it isn't and in Northern Ireland generally domestic wiring is not under building regs at all.

However, for any wiring claiming to be to any edition of BS7671 that permits ring finals, expect as a minimum some continuity and insulation test results and a Zs, I'd really expect an installation cert rather than minor works, but you are allowed to invent your own certs (and as an example NICIEC do ), but they must have the same or more info on cf the bare minimum.

Mike