What is the rule regarding the use of daytime running lights or dipped headlights during designated state road safety campaigns in Belarus (e.g. 'Attention — Children!')?

1. Headlights or DRLs must be turned on during daylight hours by all motor vehicles during the designated campaign dates (25 May–5 June and 25 August–5 September)
2. Headlights are optional if sunshine is bright
3. Only yellow fog lamps may be used
4. Applies only to school buses, not passenger cars