This e-book is written based on 40 years of work experience in Oil and Gas Industry, Oil and Gas company procedure and some references from internet. The Basic Understanding of Explosion-Protection focuses on . The roles of the parties involved in the safety of hazardous areas. The common Acts and Regulations related to the safety of hazardous areas and the authorities responsible for their implementation. The hazardous area responsibilities of the owner of premises in which a hazardous area exists and the occupier of premises in which a hazardous area exists