If a load extends 4 feet or more over the rear of a vehicle during the daytime, what color flag must be attached?

Prepare for the Texas Commercial Rules Test. Review with flashcards and multiple choice questions, each offering hints and detailed explanations. Ensure success on your exam!

The requirement to attach a red flag to a load extending 4 feet or more over the rear of a vehicle during the daytime is grounded in safety regulations designed to warn other road users of the potential hazards posed by protruding loads. The color red is universally recognized as a warning signal, enhancing visibility and alertness among drivers and pedestrians. This is critical in preventing accidents by ensuring that other vehicles maintain a safe distance from the load.

The other colors mentioned—blue, yellow, and green—do not carry the same connotation of caution or hazard as red does in this context. For instance, blue is often associated with informational signs, while yellow typically indicates caution in a general sense but is not the specific requirement for marking overhanging loads. Green usually represents go or safe conditions, which would not apply here. Therefore, the regulation mandating the use of a red flag serves a clear purpose in promoting safety on the roads when transporting oversized loads.

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