I have got my select assesment on friday and have basically everything ready,1 of the jobs that I am going to use was a kitchen re-fit i done a few months ago,at the time I advised the client that there CU didnt meet 17th regs as it only had mcb's with a main switch and no rcd protection present but as there were no new circuits involved in this job the client didnt want there cu changed ,said they would do it in the near future,I made a note of this in there test sheets and paperwork that CU needs upgraded,Am I right in thinking its only complete new circuits that require to comply with latest regs and existing circuits all you can do is advise the client to upgrade there CU or fit RCBO'S,will this job be ok to put forward for my assesment or will i need to ensure all circuits that I altered meet 17th regs???