Does the sign allow the overtaking manoeuvre of a motor vehicle?

The sign in the question indicates the prohibition for all vehicles from overtaking motor vehicles travelling on the carriageway when such a manoeuvre involves crossing into the lane reserved for oncoming traffic. The prohibition applies from the location of the sign until the next "End of overtaking prohibition" or "End of prohibitions" sign.
Placed in locations where overtaking is prohibited by regulation, it serves as a general reminder of the prohibition to carry out this manoeuvre.