The Nationally Accredited Certification Scheme (ACS) is the industry recognised and is accepted route for operatives to gain a national certificate of competence, needed to become a member of the Gas Safe Register. The book is designed to help you pass the ACS exams on your first attempt with over 350 multiple choice questions. We focus on the objectives you need to know, so you will know what to expect on the actual exam. The exam questions closely mimic those on the actual exam, so there won't be any surprises when you get to the testing centre. You will be able to chart your progress with multiple, full-length exams that simulate exam required to attain you qualification.