It is obligatory to install on the rear of a commercial vehicle with an all up weight of 12,000 kg or more:

1. Two white light reflecting strips.
2. Correct answer: Two rectangular tables colored in red/white.
3. Two triangular yellow-light reflectors colored in red/white.
4. Two round yellow-light reflectors, colored in red/white.

WhyAt the rear of a commercial vehicle over 12,000 kg, two rectangular red-and-white plates are installed.