Why the Work Permit Flow Chart Is Critical for High-Risk Work Safety | PTW System

Types of permit to work

Introduction: Why Researchers Are Paying Closer Attention to PTW Systems In high-risk work environments—construction sites, oil and gas facilities, manufacturing plants, power stations, confined spaces, and maintenance shutdowns—accidents rarely happen because workers “didn’t know better.” From a researcher’s perspective, incident investigations consistently reveal something deeper and more uncomfortable: the breakdown of control systems that were … Read more

What is the Permit To Work System (PTW)?

Permit To Work System

In plain terms, a Permit To Work System is a formal, documented way to authorize, control, and coordinate high-risk work—such as hot work, confined space entry, electrical isolation, or breaking containment—by verifying hazards, isolations, and safeguards before work starts, while it’s underway, and when it’s closed out. In practice, a PTW ties together risk assessment, … Read more