"To comply with Part P, you must either – (i) use an electrician who is registered with a Competent Person’s scheme (ask your electrician for details), in which case a Building Regulations application will not be required for the electrical work; or, (ii) use an electrician who is registered with a recognised trade body such as NCEIC, ECA & NAPIT, etc.., and who will issue a ‘design, installation and test’ certificate under"
So if your an electrician who isn't registered with a CPS (i), or registered with a trade body (ii), you can't comply with Part P?