Do you need to inspect, test and certify the electrical work you carry out?. Are you unsure what Part P and other legislation require you to inspect and test and how to do it? If you have answered yes to either of these questions, this is the book you have been looking for. It covers all the basics of inspection and testing and illustrates step-by-step and in full colour how to carry out the different tests. Examples show how to verify recorded test results and how to certify and fill in the required forms. It also addresses problems encountered on the job and how to avoid and solve them. This book covers all the theory required for passing the City & Guilds Level 3 Certificate in Inspection, Testing, Design and Certification of Electrical Installations (2391) and includes sample questions and scenarios as encountered in the exams. Further questions encourage readers to research answers in the On-Site Guide, as required in the exams for Part P Competent Person courses from EAL, NICEIC, NAPIT and others. Model answers for all questions are also provided. The book will also help prepare students on City & Guilds 2330 Level 3 courses, NVQs and apprenticeship programmes for their practical inspection and testing exams. With its focus on the practical side of the actual inspection and testing rather than just the requirements of the regulations, this book is ideal for both experienced electricians and those working in allied industries, such as plumbers and heating specialists, kitchen and bathroom fitters, alarm installers and others, whether they are working on domestic or industrial installations.