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Lock and Tag Overview

Learning Objectives

  • Recognize the purpose of lock and tag procedures
  • Match roles and responsibilities for worker designations under lock and tag
  • Identify sources of energy hazards and consequences of improper control
  • Recognize different types of lock and tag devices
  • Recognize criteria and situations that qualify as exceptions to lock and tag requirements

Available in English, Spanish

7 Minutes

This Lock and Tag lesson creates awareness about the purpose of lock and tag procedures and employee roles and responsibilities related to lock and tag requirements. The lesson provides an overview of the hazards of uncontrolled energy sources and employer responsibilities and requirements for lock and tag. It also briefly outlines steps to protect workers.

Course Outline
  • Lock and Tag Overview
  • OSH Act Section 5(a)(1), known as the General Duty Clause
  • 29 CFR 1910.147 - The control of hazardous energy (lockout/tagout or LOTO)
  • Appendix A to §1910.147 – Typical minimal lockout procedure
  • 29 CFR 1910.335 – Safeguards for personnel protection (electrical systems)
  • 29 CFR 1910.145 – Specifications for accident prevention signs and tags
  • ANSI/ASSE Z244.1-2016 - Control of Hazardous Energy Lockout, Tagout and Alternative Methods