How are vehicles travelling in a column that is escorted by emergency vehicles with red, blue and red, green, or blue and green flashing beacons and/ or special audible signals turned on marked?

• 1On each vehicle, the 'Convoy' identification mark is mandatorily installed.
• 2On each vehicle, low-beam headlights are turned on.
• 3On each vehicle, daytime running lights or low-beam headlights are turned on.
• 4Answers 1 and 2.
• 5Answers 1 and 3.