Industrial NFC wearable systems help construction firms and plant operators enforce site access control, manage restricted zones, improve lone worker check-ins, and simplify evacuation tracking. This operations guide reviews practical credential formats—NFC wristbands, Etiquetas NFC, and reader workflows—along with implementation steps for gate entry, muster point control, and hazard area permissions. EHS managers, plant security teams, and construction supervisors will learn how RFID/NFC technology can support daily safety workflows and emergency response while creating clear audit trails. It also explains how the same credential can eliminate paper sign-in bottlenecks from site induction to muster roll calls.