Weight limitIceland
Traffic rules
Iceland
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 Iceland?
No. Iceland distinguishes a total-weight limit applying separately to each vehicle from a total-weight limit for the complete coupled combination. The latter also applies to a single vehicle. Axle-load restrictions use a different measure, and a vehicle-category prohibition must be read separately.
🔗 reglugerd.is • Iceland: Regulation signs 318.1,318.2,320; Act sections 3,7,82
🔗 althingi.is • Iceland: Road Traffic Act 77/2019, edition 1 October 2026
Vehicles heavier than indicated prohibited.
English • Traffic sign 318.1 • Vehicle total mass limit. Shows the maximum permitted total mass in whole tonnes. Applies to each vehicle in a combination.
Íslenska • Umferðarmerki 318.1 • Takmörkuð heildarþyngd ökutækja. Merki þetta gefur til kynna mestu leyfilegu heildarþyngd ökutækja, í heilum tonnum. Takmörkunin gildir um hvert ökutæki samtengdra ökutækja.
Sources
🔗 Commons.wikimedia.org
🔗 Reglugerd.is • Reglugerð nr. 250/2024 • 14. gr.
SVG source: Gigillo83, drawn by original of Umferðastrofa • Public domain • Original revision 2013-01-03. Wikimedia original unmodified.
Do cargo and trailers matter for a posted weight restriction in Iceland?
Yes. Check the loaded vehicle and trailer against the particular control. The individual-vehicle total-weight sign applies separately to each vehicle in a combination; the combination-weight sign applies to the complete combination. Check axle-load restrictions as well and do not assume one weight figure answers every control.
🔗 reglugerd.is • Iceland: Regulation signs 318.1,318.2,320; Act sections 3,7,82
🔗 althingi.is • Iceland: Road Traffic Act 77/2019, edition 1 October 2026
What should you do if your vehicle exceeds a bridge weight limit in Iceland?
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.
🔗 reglugerd.is • Iceland: Regulation signs 318.1,318.2,320; Act sections 3,7,82
🔗 althingi.is • Iceland: Road Traffic Act 77/2019, edition 1 October 2026
