General Knowledge · Winter Driving
Under 49 CFR 383.111(a)(12)(i), which weather conditions does federal regulation specifically name as examples of the "bad weather" a CDL knowledge test must cover?
Explanation
Federal regulation names snow, ice, sleet, and high wind as its examples of "bad weather" within the extreme driving conditions required-knowledge topic, under 49 CFR 383.111(a)(12)(i); the same paragraph separately lists hot weather and mountain driving as the topic's other two required areas. Fog is a real visibility hazard but is not named anywhere in this enumeration, which is why a fog-specific question elsewhere in this project cites a different, broader regulation instead; heavy rain, hail, dust, mist, and drizzle are likewise real weather hazards that do not appear in this specific list. The other options fail for the same reason: each substitutes a weather condition that federal regulation does not actually name in this paragraph, even though it sounds like a plausible fit for a "bad weather" category.
Source: 49 CFR 383.111(a)(12)(i)
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