Take a test run for the Unrestricted CSL Exam. Modeled after the actual exam, updated for the 2021 code books now in effect, the practice test is timed for 3 hours (you can log out and back in for a total of 3 hours for up to 30 days) and contains 75 exam questions from the IBC, IRC, IECC and OSHA. Massachusetts test takers will also get questions from 780CMR - Massachusetts Amendments, and 521CMR - Architectural Access Board (AAB) which are included in the exam. You will get immediate results and feedback on incorrect answers.