Cal / OSHA Heat Stress & Illness Prevention

This course will provide employers and employees with important information for avoiding heat stress and illness resulting from work in the outdoors.

Beginner, Intermediate, and Advanced
Course Length: 2 Hours

What you'll learn

  • Introduction
  • Heat and the Body
  • Heat Illness
  • Heat Illness Prevention Regulations

Course Description

Heat illness awareness and prevention is an important subject for any person who must work outdoors in warm or hot weather. It is also a critical topic for outdoor employers in the state of California, which has recently amended and expanded its heat illness prevention regulations. This course will provide employers and employees with important information for avoiding heat illness resulting from work in the outdoors.

The Cal/OSHA Heat Stress/Illness Prevention Training course consists of content, graphics, audio, self-check non-scored questions, and a final exam.

Course Outline

Cal / OSHA Heat Stress & Illness Prevention Course Outline

About This Course

Course Objectives


  • Heat Illness Statistics
  • What Is Heat Illness?
  • Applicable Regulations
  • Who Is Covered by 8 CCR 3395?
  • Employer Responsibilities
  • Employee Responsibilities
  • Key Terms

Heat and the Body

  • Sweating
  • The Importance of Sweating
  • Heat and Work Activity
  • Heat and Work Performance
  • Physical and Lifestyle Risk Factors
  • Acclimatization

Heat Illness

  • Heat Rash
  • Heat Cramps
  • Heat Syncope
  • Heat Exhaustion
  • Heat Stroke

Heat Illness Prevention Regulations

  • When and to Whom Does 8 CCR 3395 Apply?
  • Overview of 8 CCR 3395
  • 8 CCR 3395 (c) Provision of Water
  • How Much Water Must Be Provided?
  • 8 CCR 3395 (d) Access to Shade
  • How Much Shade Must Be Provided?
  • Where Must Shade Be Located?
  • Preventative Cool-Down Rests
  • 8 CCR 3395 (e) High-Heat Procedures
  • Employer Responsibilities in High-Heat Conditions
  • 8 CCR 3395 (f) Emergency Response Procedures
  • 8 CCR 3395 (g) Acclimatization
  • 8 CCR 3395 (h) Training-All Employees
  • 8 CCR 3395 (h) Training-Supervisory Employees
  • How Is Training Evaluated for Compliance?
  • 8 CCR 3395 (i) Heat Illness Prevention Plan
  • Cal/OSHA Penalties for Non-Compliance


Additional Resources


Frequently Asked Questions

Who must take this training?

Employers are mandated by 8 CCR 3395 to train both nonsupervisory and supervisory employees on a variety of heat illness subjects. This training must be provided before the employee begins to work under conditions that may cause heat illness.

How often is retraining or recertification required?

Employee training must be provided in four situations:

  1. Before the employee is first assigned duties under this regulation
  2. Before there is a change in assigned duties
  3. Whenever there is a change in working conditions that presents a hazard for which an employee has not previously been trained
  4. Whenever the employer has reason to believe either that there are deviations or that there are inadequacies in the employee’s knowledge or use of these procedures

What are the governing regulations?

This online course satisfies the training requirements for the Cal/OSHA Title 8 CCR, Section 3395 Heat Stress/Illness Prevention Standard.

Navigation Strategies

Beginners: Complete the course in order from beginning to end. Once any topic is completed, you will have full access to it at any time for one year after registration, to use as a resource.

Intermediate/Advanced Users: Use the course as a flexible resource tool to find what you need, whenever you need it. Try the assessment tests first, if you get 80%+ you can move to the next level, if you get less than 80% you should complete the lecture. This gives you a pre and post-assessment score, which can be used to track your skills improvements.

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