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National Standard Residential Mechanical Class C 679 (2020-01-24)
Number of Questions 70
Time Allowed 3 Hours
Closed Book These books are for pre-test study only and are not available for use during the test.
Publication Year: 2006
Flip through the I-Codes series and find frequently used sections fast! You'll be surprised how easy it is to find what you are looking for. These tabs were created by industry experts who carefully identified the most referenced sections in the code.