236+ Free CHMM Practice Questions

The IHMM CHMM exam contains 140 multiple-choice questions and is 3 hours long. The IHMM Candidate Handbook states that IHMM may at times include pre-test items in some examination forms; those items are used to develop future exams, are not scored, and have no impact on pass/fail status. Candidates cannot identify them during the exam, so every question should be treated as scored.

CHMM examination scores are reported as scaled scores between 0 and 1000, and 700 points are required to pass. IHMM exams are criterion-referenced: the passing score was set by a panel of subject-matter experts who defined minimally acceptable competence, it is applied consistently to every candidate, and scores are not curved against other test takers.

The CHMM exam is 3 hours long and is delivered by Kryterion. Candidates may test at one of more than 1,100 Kryterion computer-based testing centers in the United States and internationally, or take the exam by remote online live proctoring through the Webassessor portal using Kryterion’s secure browser and a webcam. Candidates receive a preliminary pass/fail notice at the end of the exam, followed by official confirmation from IHMM.

CHMM candidates must hold a baccalaureate degree or higher from an accredited college or university, preferably in applied science, chemistry, biology, geology, hazardous materials management, environmental science or management, a physical or life science, or environmental technology, plus 4 years of relevant experience in hazardous materials management or a related field. There is no waiver for the academic requirement, an official transcript or diploma must be uploaded with the application, and IHMM requires third-party verification of employment rather than a self-declaration.

Under the CHMM Exam Specifications (Blueprint) effective 2021, the largest domain is Health and Safety at 10.57%, followed by Shipping and Transporting Hazardous Waste and Hazardous Materials at 10.34%, Planning for Materials with Hazards at 9.35%, Store Materials with Hazard at 9.22%, and Facility Operations Involving Materials with Hazards at 9.12%. Those five domains together account for 48.6% of the exam.

Download the CHMM blueprint from IHMM and study to its 12 domains and their tasks, because every exam item is drawn from it. Focus on the major regulatory programs: RCRA (40 CFR 260-279), DOT hazardous materials (49 CFR 100-185), OSHA HazCom (29 CFR 1910.1200) and HAZWOPER (29 CFR 1910.120), CERCLA and EPCRA, and TSCA. Master waste characterization, shipping paper requirements, container management, and emergency response procedures. IHMM does not require any specific course, and the exam is not based on any single reference.

Per the IHMM fee schedule, a first attempt costs $560: a non-refundable $185 application fee plus a $375 examination fee. Re-examination costs $160. Once certified, holders pay a $170 Annual Certification Maintenance Fee for a single credential ($225 for more than one). Recertification every 5 years by documentation costs $0 and requires 200 certification maintenance points; recertification by examination costs $375.

The CHMM exam tests RCRA hazardous waste regulations, DOT hazardous materials transportation, OSHA worker protection standards including HazCom and HAZWOPER, CERCLA and EPCRA emergency planning, reporting and response, TSCA chemical regulations, SPCC oil spill prevention, Clean Air Act and Clean Water Act permitting, and OSHA process safety management. The credential is also recognized by EPA: a CHMM qualifies as an "Environmental Professional" under 40 CFR 312.10.