Are trailers allowed in an HOV lane?

En español: ¿Se permiten los remolques en un carril de alta ocupación (CAO)?

A Yes, if the vehicle meets the occupancy requirement
B Yes, if the trailer is empty
C No, trailers are not allowed Correct answer
D Only light trailers under 750 kg

Why this is the correct answer

Trailers are not allowed in the HOV lane, regardless of the towing vehicle.

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