Yes, you may overtake a vehicle in front of you, even if there is an oncoming vehicle approaching in the opposite lane, as long as you can perform the manoeuvre without crossing the road's centre line.

However, ask yourself the following before initiating such an overtaking:

• Do you have time to complete the overtaking on the part of the road you can overlook? If the answer is no, refrain from overtaking.
• Are there any intersecting roads further ahead? If the answer is yes, refrain from overtaking.
• Is there any risk of the driver in the vehicle in front of you turning left? If the answer is yes, refrain from overtaking.
• Are there any obstacles along the roadside which makes it difficult for the driver in the vehicle in front of you to keep to the right? If the answer is yes, refrain from overtaking.
• Has a vehicle behind you already started overtaking you? If the answer is yes, refrain from overtaking.
Read more about overtaking