Article 66 of Bahrain's Traffic Law Implementing Regulation restricts the use of driving lights, the high beams. When are they prohibited?

1. At all times, in every circumstance
2. In populated areas where the road is adequately lit, outside populated areas where the carriageway is lit well enough for the driver to see clearly and far enough ahead, and while the vehicle is stopped or waiting
3. Only between midnight and dawn
4. Only when the vehicle is carrying passengers