Course 513 Introduction to 29 CFR 1910.147

Safety guides and audits to make your job as a safety professional easier
Course 513 Certificate
Frame not included.
  • modules icon Modules: 3
  • clock icon Hours: 2
  • sector icon Sector: General Industry

Certificate Options

  • $ PDF & Original
  • $ Original
  • $ PDF

Shipping & Handling not included for original certificate prices.


This course is a review of 29 CFR 1910.147, The control of hazardous energy (lockout/tagout)

Free Training!

As an OSHAcademy student, you can access 100% of our training materials for free, including our module quizzes and course exams. We only charge a small fee if you decide to document your training with our official course certificates or transcripts.

Start Course

Key Topics

  • Scope and Application
  • Definitions
  • Energy Sources
  • Lockout/tagout devices
  • Lockout/tagout procedures
  • Training requirements

Target Audience

  • Employee
  • Supervisor

Frequently Asked Questions (FAQ)


"Lockout/tagout" refers to specific practices and procedures to safeguard employees from the unexpected energization or startup of machinery and equipment, or the release of hazardous energy during service or maintenance activities. This requires, in part, that a designated individual turns off and disconnects the machinery or equipment from its energy source(s) before performing service or maintenance and that the authorized employee(s) either lock or tag the energy-isolating device(s) to prevent the release of hazardous energy and take steps to verify that the energy has been isolated effectively.

Employees can be seriously or fatally injured if machinery they service or maintain unexpectedly energizes, starts up, or releases stored energy. 29 CFR 1910.147, The Control of Hazardous Energy (Lockout/Tagout), spells out the steps employers must take to prevent accidents associated with hazardous energy. The standard addresses practices and procedures necessary to disable machinery and prevent the release of potentially hazardous energy while maintenance or servicing activities are performed.

The control of hazardous energy is also addressed in a number of other OSHA standards, including Marine Terminals (1917 Subpart C), Safety and Health Regulations for Longshoring (1918 Subpart G), Safety and Health Regulations for Construction; Electrical (1926 Subpart K), Concrete and Masonry Construction (1926 Subpart Q), Electric Power Transmission and Distribution (1926 Subpart V), and General Industry; Electrical (1910 Subpart S), Special Industries (1910 Subpart R), and Electric Power Generation, Transmission and Distribution (1910.269).

The purpose of this course is to familiarize safety professionals with the specific requirements of the standard.

Modules and Learning Objectives

Click on the links below to access the modules. You can also click on the links at the top of the page.

Module 1 - Scope, application, and definitions.

Learning objectives in this module include:

  • Discuss the scope of the standard and its application.
  • List and define some of the primary terms used in the standard.

Module 2 - Energy Control Program and Procedures

Learning objectives in this module include:

  • Describe the requirement for employers to establish an Energy Control Program.
  • Discuss the criteria for equipment being considered capable of being locked out.
  • Define "full employee protection."
  • Describe the criteria that determine the exception to lockout/tagout.
  • Describe lockout/tagout materials and hardware, and related requirements.
  • Describe the requirements for periodic lockout/tagout inspection.
  • Identify training requirements for authorized, affected, and other employees.

Module 3 - Application of Controls

Learning objectives in this module include:

  • Describe procedures for preparing for shutdown.
  • Describe procedures for equipment/machinery shutdown and isolation.
  • Discuss the procedure for lockout/tagout device application.
  • Identify methods to control hazardous energy sources.
  • Discuss procedures for release from lockout tagout.
  • Describe procedures for testing or position machines.
  • Discuss requirements for coordinating with outside contractors.

Course 513 Study Guide. You can save this study guide to your computer for offline studying, or print the study guide if you prefer.

Additional Resources

  1. Guide to Controlling Hazardous Energy, OR-OSHA
  2. Interactive LOTO Training, OSHA
  3. Case Studies, OSHA
  4. Sample LOTO Plan, DOL - Indiana
  5. Napo's Films, Via Storia
  6. Typical Lockout Tagout Procedures, Creative Safety Supply

Course 513 Final Exam

Exam score sheet

After studying the course material and answering the quiz questions, it is time to take the final exam. We highly recommend answering the module quiz questions to check your understanding of the course material. The final exam questions are typically developed from these quiz questions.

OSHAcademy course final exams are designed to make sure students have gained a sufficient understanding of the content covered within each course. To help demonstrate this understanding, students must achieve a passing score on course final exams. It is OSHAcademy's policy to protect the integrity of our exams: as a result, we do not provide missed questions to students.

This is an open book exam. Students are permitted to use a separate browser window to review course content while taking the exam. If you do not pass a final exam, you will see a "Retake Exam" button next to the course on your student dashboard.

If you have already paid for your certificate

If you have already paid for certificates, your exam score will be displayed on your student dashboard after successfully passing the final exam. If you chose PDF certificates, you can view and print your certificate and personal transcript from your student dashboard. If you chose original printed documents, they will be prepared and mailed to the address in your student account.

If you only want free training

OSHAcademy provides free access to all training materials, including course modules, practice quizzes, exercises, and final exams. However, exam scores, certificates, and transcripts are provided only if you purchase a certificate package to document your training. If you do not require official training documentation, we will archive your exam results should you decide to purchase official certificates later.

Take the Final Exam