According to the AAMVA CDL Manual, when should a driver activate the alternating flashing amber warning lights (if the bus is so equipped) when approaching a school bus stop?

At least 500 feet, or approximately 15-20 seconds, before the school bus stop

Only after the bus has already come to a complete stop

At the same distance as the right turn signal, about 100-300 feet before pulling over

Loading & Unloading Procedures Test 1/2

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Correct!

Correct. The manual's 'Approaching the Stop' procedure (Section 10.2.1, p. 10-3) directs drivers to activate alternating amber warning lights at least 200 feet, or approximately 5-10 seconds, before the stop, or in accordance with state law. This specific figure is the AAMVA manual's own procedural detail; the federal regulation that requires this topic be tested, 49 CFR 383.123(a)(2)(i), only lists flashing lights and loading/unloading as a knowledge-test subject without stating any distance or time.

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Not quite.

Wrong. The manual specifies roughly 200 feet / 5-10 seconds, not 500 feet / 15-20 seconds, this overstates the distance given in the source procedure.

The correct answer is A: At least 200 feet, or approximately 5-10 seconds, before the school bus stop, or in accordance with state law.

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Not quite.

Wrong. The amber lights are a warning activated during the approach, before the bus stops, not after. Waiting until after the stop defeats their purpose of alerting traffic in advance.

The correct answer is A: At least 200 feet, or approximately 5-10 seconds, before the school bus stop, or in accordance with state law.

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Not quite.

Wrong. This confuses the amber warning light distance (about 200 feet out) with the right turn signal distance (about 100-300 feet out), which is a separate, later step in the same sequence.

The correct answer is A: At least 200 feet, or approximately 5-10 seconds, before the school bus stop, or in accordance with state law.