Part P is the building regulation that covers electrical safety in dwellings.
To register with a Competent Person Scheme (CPS), such as NAPIT or ELECSA, which will allow you to self-certify your work, you will have to demonstrate your competence as an electrical installer, have your BS7671-2018 (18th Edition), know how to inspect and test and show that you adhere to the latest Part P building regulations. The CPS can then issue your customer with a Part P electrical certificate.
Our 5 day Domestic Energy Installers training course (DEI) from Logic Certification brings you right up to date with the required safety and legal standards outlined in this part of the regulations. It also covers the requirements from all of the building regulations and how an electrical installation can, and must, meet them.