The article outlines seven types of work permits (PTWs) crucial for various job activities to ensure worker safety. These include Cold work and Hot work permits for jobs that don’t generate heat and ones that do, respectively. Excavation permits are for land digging activities, while Work at height permits authorize elevated activities. Confined space work permits manage hazards in confined spaces. Chemical work permits control chemical uses, and Electrical work permits secure jobs around electrical sources. These PTWs typically have specific features and can be suspended under certain conditions for safety.