National speedFlanders
131. National speed
A national speed limit is a default maximum speed established by law for a particular type of road or vehicle when no lower or different local speed limit is indicated. National or general speed limits can differ according to whether the road is a motorway, rural road, built-up-area road or another road category.
Drivers should know the default speed limits that apply in the country or region where they are travelling and always obey any posted speed limit that overrides the general rule.
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Does Belgium have one national speed limit?
No. Belgium has different general speed limits according to the road type, vehicle and region. Drivers must therefore know whether they are in Brussels, Flanders or Wallonia and follow any posted speed limits.
Is there a Belgian national-speed-limit sign?
No dedicated sign simply meaning 'national speed limit applies' is used in the current Belgian system. When a local C43 speed restriction ends, an applicable end-of-restriction sign or the general rules for the road and region determine the speed that applies next.
Start of a speed limit.
English • Traffic sign C43 • Travelling faster than the indicated speed is prohibited from the sign up to and including the next junction, or until any C43 sign, with or without zonal validity, or a sign marking the beginning or end of a built-up area, residential area (zone résidentielle or zone de rencontre), or pedestrian zone.
Français • Signal routier C43 • A partir du signal jusqu'au prochain carrefour inclus, ou jusqu’à chaque signal C43 avec ou sans validité zonale, ou jusqu’au signal indiquant le début ou la fin d’une agglomération, d’une zone résidentielle, d’une zone de rencontre ou d’une zone piétonne, interdiction de circuler à une vitesse supérieure à celle qui est indiquée.
Nederlands • Verkeersbord C43 • Vanaf het verkeersbord tot en met het volgend kruispunt, of tot elk verkeersbord C43 met of zonder zonale geldigheid, of tot het verkeersbord dat het begin of het einde van een bebouwde kom, van een woonerf of erf, of van een voetgangerszone aanduidt, verbod te rijden met een grotere snelheid dan deze die is aangeduid.

Traffic rules
Flanders