Weight limitNorway
1. Weight limit
A weight limit prohibits vehicles or vehicle combinations whose mass exceeds the value shown from entering or passing a road section, bridge, tunnel or other structure. Depending on local law, the restriction may concern the vehicle’s actual loaded mass, maximum authorised mass or load on an individual axle.
Drivers must know which type of mass the sign refers to and must include the vehicle, passengers, cargo and any trailer where required. A vehicle that exceeds the limit must use another suitable route.
Does every weight-limit sign measure the same kind of vehicle weight in Norway?
In Norway, sign 318.1 limits actual total mass for each individual vehicle, including each vehicle in a combination. Sign 318.2 limits the combined actual total mass and also covers a single vehicle exceeding the figure. Signs 320 and 322 limit axle or bogie loads, while sign 310 uses authorised total mass for its stated vehicle class.
🔗 lovdata.no • Norway, Traffic Rules — Traffic Rules 3; signing regulations 8, signs 310–322
🔗 lovdata.no • Norwegian signing regulation — current sign catalogue, markings and signals
Vehicles heavier than indicated prohibited.
English • Traffic sign 318.1 • Vehicle total mass limit. Applies where actual total mass exceeds the stated value. For combinations, it applies to each vehicle individually.
Norsk bokmål • Skilt 318.1 • Totalvektgrense for kjøretøy. Forbudet gjelder kjøretøy hvor aktuell totalvekt er høyere enn angitt. For vogntog gjelder forbudet hvert enkelt kjøretøy.
Sources
🔗 Commons.wikimedia.org
🔗 Lovdata.no • Skiltforskriften § 8
SVG source: Peter J. Acklam converted the original EPS file to PDF with Ghostscript and the PDF file to SVG with Inkscape. • Public domain • Original revision 2008-08-04. Wikimedia original unmodified.
Trucks with trailer heavier than indicated prohibited.
English • Traffic sign 318.2 • Combination total mass limit. Applies where the combination's combined actual total mass exceeds the stated value. Also applies to individual vehicles whose actual total mass exceeds it.
Norsk bokmål • Skilt 318.2 • Totalvektgrense for vogntog. Forbudet gjelder vogntog hvor samlet aktuell totalvekt er høyere enn angitt. Forbudet gjelder også enkelt kjøretøy hvor aktuell totalvekt er høyere enn angitt.
Sources
🔗 Commons.wikimedia.org
🔗 Lovdata.no • Skiltforskriften § 8
SVG source: Peter J. Acklam converted the original EPS file to PDF with Ghostscript and the PDF file to SVG with Inkscape. • Public domain • Original revision 2008-08-04. Wikimedia original unmodified.
Vehicles exceeding the axle-load limit prohibited.
English • Traffic sign 320 • Axle load limit. Applies where actual axle load exceeds the stated value, actual tandem-axle load exceeds 1.5 times that value, or actual triple-axle load exceeds 2 times that value.
Norsk bokmål • Skilt 320 • Aksellastgrense. Forbudet gjelder kjøretøy med aktuell aksellast høyere enn angitt, aktuell boggilast høyere enn 1,5 ganger angitt aksellast eller aktuell trippelboggilast høyere enn 2 ganger angitt aksellast.
Sources
🔗 Commons.wikimedia.org
🔗 Lovdata.no • Skiltforskriften § 8
SVG source: Peter J. Acklam converted the original EPS file to PDF with Ghostscript and the PDF file to SVG with Inkscape. • Public domain • Original revision 2008-08-04. Wikimedia original unmodified.
Trucks heavier than indicated prohibited.
English • Traffic sign 310 • No motor vehicles with more than two wheels whose maximum authorised mass exceeds the stated value.
Norsk bokmål • Skilt 310 • Forbudt for motorvogn med flere enn to hjul og med tillatt totalvekt høyere enn angitt.
Sources
🔗 Commons.wikimedia.org
🔗 Lovdata.no • Skiltforskriften § 8
SVG source: Peter J. Acklam converted the original EPS file to PDF with Ghostscript and the PDF file to SVG with Inkscape. • Public domain • Original revision 2008-08-04. Wikimedia original unmodified.
Do cargo and trailers matter for a posted weight restriction in Norway?
Yes, whenever the rule is based on actual loaded mass or the total mass of a combination. Cargo, passengers and the trailer affect that figure; weight on individual axles may be limited separately. If the sign instead uses authorised maximum mass, an empty vehicle may still be prohibited.
🔗 lovdata.no • Norway, Traffic Rules — Traffic Rules 3; signing regulations 8, signs 310–322
🔗 lovdata.no • Norwegian signing regulation — current sign catalogue, markings and signals
What should you do if your vehicle exceeds a bridge weight limit in Norway?
Do not drive onto the bridge. Follow the signed alternative route and check the vehicle’s gross and axle loads as applicable. A general heavy-vehicle permit does not automatically authorise crossing every restricted bridge.
🔗 lovdata.no • Norway, Traffic Rules — Traffic Rules 3; signing regulations 8, signs 310–322
🔗 lovdata.no • Norwegian signing regulation — current sign catalogue, markings and signals

Traffic rules
Norway