Mold is a serious growing health hazard in many homes and businesses in California. In order to become a certified mold inspector in the state of California, you will need to take and pass a certification exam. You will need to register for the test, study the materials provided to you, and complete the exam with a passing score.

Certification Examination

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Apply for the test. To acquire certification to practice as a mold inspector in the state of California, you will need to apply for the test given only by the International Indoor Air Quality Commission, which is a nationally recognized establishment. You can access the application via Internet at iiaqc.org. 24 hours a day, seven days a week, or call directly at 772-539-0118 from 9 a.m. to 5 p.m. (Eastern time).

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Wait to receive study materials. Once you have registered for the exam, study guides and materials will be emailed to you pdf. for your review and preparation for the test.

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Access the online exam; it's available 24 hours a day. IIAQC examinations are open book, timed, and contain a variety of multiple-choice as well as true/false questions. There are about 100 questions on the exam and you must obtain a score higher than 79 percent to pass. Also, the exams are completely confidential and you can retake the exam as many times as you wish.