According to 49 CFR 383.119, which of the following is NOT one of the subject areas a tank vehicle endorsement applicant must know?

49 CFR 383.119(a)-(i)

Federal law sets a closed list of exactly nine knowledge areas a state must test for the tank vehicle endorsement. Knowing it's a specific, limited list (not general CMV knowledge) helps you focus your study instead of over-preparing on unrelated topics.