The Certified Hazardous Materials Manager (CHMM) certification by The Institute of Hazardous Materials Management (IHMM) examines your understanding of the field of hazardous materials management. The exam is designed to ensure certified candidates have the skills and knowledge necessary to protect public health, safety, and the environment.


To be eligible for the CHMM exam, you need to hold at least a bachelor’s degree from an accredited college/university, a minimum of four years of relevant experience, two references, and payment of the application fee. Eligibility requirements must be met before submitting your application and scheduling the CHMM examination.


Once the eligibility requirements are met, you can register for the certification. Complete the online application, submit the required documents and pay the $175.00 application fee by credit or debit card. If your application is complete and demonstrates the required prerequisites, IHMM issues an authorization to test. You have 12 months from the date your application is approved to schedule your exam.

The exam is offered at Kryterion HOST computer-testing facilities at centers located worldwide. Test appointments vary based on location, and most centers are closed on the weekend and holidays. Your authorization to test includes instructions for registering for the examination.

Test design

Your knowledge and understanding of the relevant laws and regulations, scientific principles and their application, and best management practices are assessed in the three-hour, computer-delivered exam. The exam consists of 140 multiple-choice questions from the following duty areas:

Planning – 7.9% of questions

This domain assesses your ability to determine material hazards, conduct pollution prevention assessments, analyze operations, and develop permits, program plans, and operating procedures.

Shipping and Transporting – 7.6% of questions

Your knowledge of the proper packaging, labeling, and shipment of materials and hazards is examined.

Storage – 8.5% of questions

Your understanding of the proper selection and storage of hazardous materials is assessed.

Facility Operations – 8.2% of questions

Your understanding of the security standards for operations involving hazardous materials is assessed.

Disposition – 11.8% of questions

Manage the disposition, treatment, release, emissions, and discharges of hazardous materials.

Record Keeping and Reporting – 5.2% of questions

Determine reporting and recording keeping requirements. Ensure policies and procedures for record maintenance are followed.

Training Personnel – 8.8% of questions

Determine the training requirements and competencies, conduct training drills and exercises, and evaluate the effectiveness of training.

Response and Recovery – 9.4% of questions

Competencies evaluated include your ability to identify incidents, the required responses, and reporting procedures. Your skills in developing recovery plans, incident action plans, and root cause analysis are examined.

Remediation – 8.1% of questions

Your knowledge of remedial objectives, remediation steps and the management of remediation plans, including site closure are assessed.

Management Systems – 7.8% of questions

Complete management of records, regulations, communication, audits, financial analysis, and the development of policies are tested in this domain.

Environmental Studies – 4.7% of questions

Your ability to assess environmental concerns, including contaminants and environmental impact, is examined.

Health and Safety – 12.0% of questions

You are assessed on your knowledge of hazardous substance dangers to employees, the public, and the environment. Your knowledge of the development of various mitigation plans is examined including analysis, operation, site safety, emergency response, prevention, hazardous communication, personal protective equipment, and global harmonization systems.

Test Day

On the day of your appointment, arrive 15 minutes early with your authorization to test and two forms of identification. The only test aid you can bring with you to the testing center is a four-function or non-programmable scientific calculator. Scratch paper and writing utensils are provided.

Your official test time begins when you start the exam. If time remains, review your answers. At the conclusion of your exam, log off the computer to submit your responses.

Exam results and scoring

The CHMM exam is pass or fail, and you receive your unofficial results before you leave the testing center. Only correct responses are scored. It benefits you to answer every question, even if you have to guess. Official results are sent by email within three weeks of your exam.

If you need to retake the exam, you can reschedule as soon as you receive your official results. You can take the exam two times (after the first attempt) at no charge before you are required to wait a year and resubmit your application and fee again.

How Can I Prepare for the CHMM Exam?

That’s a great question.  We’ve broken down the answer into three parts.

  1. Do yourself a favor and study.  Do not walk in unprepared. We have recommended prep materials below, but that only helps if you actually try.  Plus, studying is actually proven to be the best antidote to test anxiety.
  2. Take care of yourself.  Make sure you’re eating well, exercising, and sleeping.  All of these things are scientifically linked to brain performance.  If you take care of your body, you’ll be helping your grades.
  3. Get a study guide or set of flashcards.  Some people study better a certain way. Find your study strengths and make the most of them.  We’ve tried to make it easy for you by tracking down the best study guide and flashcard set for your exam. Below you’ll see links to both!

Study Guide



Last Updated: August 1, 2019