2024 MT CDL Practice Test: Class C - Test 3 Based on 2024 MT CDL Handbook 21. Typically, the identification numbers of hazardous materials are _____ digit codes. A Four. B Six. C Three. D Five. Next More 21/30 Progress 0 Errors Restart Next Next Class C - Test 3 Back to Test List Class C - Test 2 Class C - Test 4 Challenge Library 12 More MT CDL Practice Tests 1 Class A - Test 1 2 Class A - Test 2 3 Class A - Test 3 4 Class A - Test 4 5 Class A - Test 5 43 Class C - Test 4 44 Class C - Test 5 45 Bus - Test 46 Bus - Test 2 47 Bus - Test 3
