Gas bottles and LPG on ferries and in tunnels: operator by operator

What changes at the border

• LeShuttle and Viking Line do not carry LPG-fuelled vehicles; Color Line carries them like other cars, the Mont Blanc tunnel on declaration at the toll, P&O only factory-built ones.
• Every ferry wants the gas valve shut; Eckerö and Viking Line want it sealed too, Fjord Line fixes its own seal at check-in.
• At most 3 cylinders and 47 kg on Stena, DFDS and P&O; at most 4 cylinders on Finnlines.
• Fjord Line counts gas cylinders as dangerous goods: a written clearance from the captain, requested at least 72 hours before check-in.

One by one

• Color Lineverified
  Caravan, motorhome and the like: the main gas supply disconnected or shut before boarding and during the crossing; access to the gas container unlocked if possible; the vehicle is marked with a windscreen note before boarding

  Source: colorline.no

  Hovedtilførsel for gass på campingvogn, bobil og lignende skal være frakoblet eller stengt før ombordkjøring, og under overfarten. Tilgangen til gassbeholderen skal være ulåst hvis mulig slik at beholdere kan fjernes i tilfelle brann. Som bekreftelse på at gassen er frakoplet/stengt merkes kjøretøyet med en lapp i frontruten før ombordkjøring.In English: “The main gas supply of a caravan, motorhome and the like must be disconnected or shut off before boarding and during the crossing. Access to the gas container must be unlocked if possible, so that containers can be removed in case of fire. As confirmation that the gas is disconnected/shut off, the vehicle is marked with a note in the windscreen before boarding.”Color Line, 'Sikkerhet om bord', Gassbeholdere og gassdrevne biler · colorline.no · read 2026-10-29

  Cars running on LPG, hydrogen or biogas travel like other vehicles

  Source: colorline.no

  Gassdrevne biler på LPG, Hydrogen eller Biogass kan transporteres på lik linje som andre kjøretøy.In English: “Gas-powered cars running on LPG, hydrogen or biogas can be transported in the same way as other vehicles.”Color Line, 'Sikkerhet om bord' · colorline.no · read 2026-10-29
• DFDSverified
  DFDS (as stated on its Rosslare–Dunkirk page): up to 3 gas cylinders fitted in the vehicle, together at most 47 kg — butane/propane for lighting, cooking or heating, or propane/helium; no jerry cans

  Source: dfds.com

  Carriage of Gas and Fuel — If your vehicle is fitted with gas cylinders, up to 3 gas cylinders may be carried, the combined weight of which must not exceed 47 kg; Butane/Propane (for lighting, cooking or heating purposes only), or Propane/Helium. The transport of jerry cans on-board is specifically forbidden, full or empty.DFDS FAQ (Rosslare–Dunkirk page) · dfds.com · read 2026-10-29
• Eckerö Line (Helsinki–Tallinn)verified
  In a motorhome or caravan: the cylinder's location marked, the main valve closed and sealed, the compartment openable in case of fire; loose cylinders in other vehicles banned on m/s Finlandia

  Source: eckeroline.fi

  Jos kuljetat asuntoautossa tai -vaunussa kaasua, huolehdi siitä, että kaasupullon sijainti on merkitty ja että pullon pääventtiili on suljettu ja sinetöity. Huomioi myös, että kaasupullojen säilytystila on oltava avattavissa tulipalon sattuessa. Muissa ajoneuvoissa irrallisten kaasupullojen kuljetus on kielletty kokonaan m/s Finlandialla.In English: “If you carry gas in a motorhome or caravan, make sure the gas cylinder's location is marked and the cylinder's main valve is closed and sealed. Note also that the gas cylinder compartment must be openable in case of fire. In other vehicles, carrying loose gas cylinders is banned entirely on m/s Finlandia.”Eckerö Line, 'Auto mukana matkalla' (Finnish page) · eckeroline.fi · read 2026-10-29
• Finnlines (Helsinki–Travemünde and others)verified
  Gas bottles and cylinders closed before boarding; at most 4 gas cylinders in a camper

  Source: finnlines.com

  Gas bottles and cylinders must be closed before boarding the ship Gas bottles in campers and boats maximum 4 cylindersFinnlines, 'Good to know — tips for campers and caravans on board', Dangerous goods · finnlines.com · read 2026-10-29
• Fjord Lineverified
  The gas container closed before boarding; at check-in you get a safety seal to fix on the valve and a sticker to place visibly in the windscreen

  Source: fjordline.no

  Reiser du med bobil eller annen kjøretøy med gassbeholder, må du sørge for at beholderen er lukket før ombordkjøringen. Fjord Line deler ut sikkerhetssegl samt klistremerke ved innsjekk. Du skal feste sikkerhetsseglet på ventilen til den lukkete gassbeholderen, klistremerket skal legges synlig i vindusruten på bilen.In English: “If you travel with a motorhome or other vehicle with a gas container, you must make sure the container is closed before boarding. Fjord Line hands out a safety seal and a sticker at check-in. You must fix the safety seal on the valve of the closed gas container; the sticker must be placed visibly in the car's windscreen.”Fjord Line, 'Reise- og kjøpsvilkår' (travel terms), dangerous substances · fjordline.no · read 2026-10-29

  Gas cylinders count as dangerous goods: a written clearance signed by the captain, obtained well before departure — requests no later than 72 hours before check-in

  Source: fjordline.com

  If traveling with a motorhome or other vehicle containing a gas container/cylinder, the container/cylinder must be securely closed before boarding. Fjord Line provides safety seals and stickers at check-in. The safety seal must be attached to the closed gas container's/ cylinder's valve, and the sticker must be placed in the vehicle's front window clearly visible from the outside. […] Vehicles powered by liquefied gas (LPG, LNG, GPL) may only sail with us if they are approved models that meet current road regulations. Any modifications must have been carried out by an authorized workshop. Documentation must be carried and may be checked at boarding. […] If dangerous goods are brought onboard either in vehicles or luggage carried by foot passengers (e.g. gas cylinders, spare fuel containers, oxygen tanks, diving equipment, weapons), a written clearance statement signed by the vessel's captain must be obtained well in advance of your departure. […] Requests must be sent to info@fjordline.com well in advance and no later than 72 hours before check-in.Fjord Line, Travel and Purchase Terms · fjordline.com · read 2026-10-29

  LPG-, LNG- or GPL-powered vehicles only as approved models meeting current road rules (any modification by an authorised workshop), with documents

  Source: fjordline.com

  If traveling with a motorhome or other vehicle containing a gas container/cylinder, the container/cylinder must be securely closed before boarding. Fjord Line provides safety seals and stickers at check-in. The safety seal must be attached to the closed gas container's/ cylinder's valve, and the sticker must be placed in the vehicle's front window clearly visible from the outside. […] Vehicles powered by liquefied gas (LPG, LNG, GPL) may only sail with us if they are approved models that meet current road regulations. Any modifications must have been carried out by an authorized workshop. Documentation must be carried and may be checked at boarding. […] If dangerous goods are brought onboard either in vehicles or luggage carried by foot passengers (e.g. gas cylinders, spare fuel containers, oxygen tanks, diving equipment, weapons), a written clearance statement signed by the vessel's captain must be obtained well in advance of your departure. […] Requests must be sent to info@fjordline.com well in advance and no later than 72 hours before check-in.Fjord Line, Travel and Purchase Terms · fjordline.com · read 2026-10-29
• LeShuttle (Channel Tunnel)verified
  No LPG-fuelled vehicles, even with LPG as a secondary fuel

  2 sources: leshuttle.com

  We regret that LPG (or equivalent flammable gas) vehicles cannot be transported by LeShuttle, formerly known as Eurotunnel Le Shuttle, even if it is being used as a secondary fuel source.LeShuttle, 'Caravans, Campers & Trailers' · leshuttle.com · read 2026-10-29

  2.4 Carriage of the following Hazardous Goods is PROHIBITED: 2.4.1 Acetylene (Oxy-acetylene) and toxic gases; 2.4.2 Vehicles powered by or which run on Hazardous Goods including Liquid Petroleum Gas (LPG) (Butane or Propane), Liquid Natural Gas (LNG), Compressed Natural Gas (CNG) or any other flammable gas. 2.5 The Carriage of certain other Hazardous Goods is RESTRICTED: 2.5.1 The Carriage of gas containers must be declared to Eurotunnel by the Customer. All gas containers carried on passenger Shuttles will be checked by LeShuttle; 2.5.2 Cylinders and tanks, and appliances powered by gas must be switched off or disabled during Carriage; 2.5.3 Leaking or inadequately secured cylinders, tanks or appliances will not be accepted for Carriage; 2.5.4 Empty or part empty cylinders will be considered to be full unless they have been purged (cleaned). […] 2.5.6 The maximum permitted volume and quantity of flammable gas cylinders and tanks per Vehicle is: For portable containers (cylinders/bottles, etc): Maximum of 47kg per cylinder and no more than 50kg per Vehicle if more than 1 container; For fixed containers (tanks): Maximum of 47kg per container and no more than 50kg per Vehicle if more than 1 container; Fixed containers must be no more than 80% full.LeShuttle conditions of carriage of dangerous goods, 2.4–2.5 · leshuttle.com · read 2026-10-29

  Gas appliances off before boarding and for the whole crossing; fixed tanks up to 47 kg if less than 80% full, which you must show

  Source: leshuttle.com

  we request that the appliance is switched off before boarding and during the entire crossing. Tanks up to 47kg may be carried, but must be less than 80% full. For your own safety and the safety of others, you will need to demonstrate this before you travel.LeShuttle, 'Caravans, Campers & Trailers', Safe transport of fixed LPG tanks · leshuttle.com · read 2026-10-29

  Flammable gas containers must be declared: at most 47 kg per cylinder or tank and 50 kg per vehicle if more than one; fixed tanks no more than 80% full

  Source: leshuttle.com

  Flammable gas containers, cylinders and appliances containing LPG, LNG, CNG or BP Gas Light, or any other flammable gas must be declared by the Customer; 2.5.6 The maximum permitted volume and quantity of flammable gas cylinders and tanks per Vehicle is: For portable containers (cylinders/bottles, etc): Maximum of 47kg per cylinder and no more than 50kg per Vehicle if more than 1 container; For fixed containers (tanks): Maximum of 47kg per container and no more than 50kg per Vehicle if more than 1 container; Fixed containers must be no more than 80% full.LeShuttle, 'Carriage of Dangerous/Hazardous Goods', clauses 2.5.5–2.5.6 · leshuttle.com · read 2026-10-29
• Mont Blanc tunnelpartly verified
  No vehicles or combinations that cannot reach or keep 50 km/h, or taller than 4.70 m including load

  Source: bison-fute.gouv.fr

  Depuis le 1er juillet 2020, l’accès au tunnel est interdit : aux véhicules ou ensemble de véhicules ne pouvant atteindre ou maintenir la vitesse de 50 km/h ; aux véhicules ou ensemble de véhicules, chargement compris, de hauteur supérieure à 4,70 m ;In English: “Since 1 July 2020 access to the tunnel is forbidden: to vehicles or combinations of vehicles unable to reach or maintain 50 km/h; to vehicles or combinations, including load, more than 4.70 m high;”Bison Futé (French road information, Ministry of Transport), 'Tunnel du Mont-Blanc (Cat. E)' · bison-fute.gouv.fr · read 2026-10-29

  Dangerous goods follow the ADR rules for tunnel category E, the most restrictive

  Source: bison-fute.gouv.fr

  Le passage des marchandises dangereuse à travers le Tunnel du Mont Blanc est soumis aux conditions et aux interdictions prévues par l’ADR pour les tunnels de catégorie E (la catégorie la plus restrictive).In English: “The passage of dangerous goods through the Mont Blanc Tunnel is subject to the conditions and prohibitions laid down by the ADR for category E tunnels (the most restrictive category).”Bison Futé, 'Tunnel du Mont-Blanc (Cat. E)', Marchandises dangereuses · bison-fute.gouv.fr · read 2026-10-29

  LPG-fuelled vehicles may pass if declared at the toll; a notice goes on the windscreen, at no extra cost

  Source: tunnelmb.net

  Les véhicules utilisant le GPL peuvent-ils emprunter le Tunnel du Mont-Blanc ? Oui, mais ils doivent le déclarer au péage. Une affichette remise au conducteur devra être apposée sur le pare-brise pour la traversée du Tunnel. Il n'y a aucun surcoût. […] -Tell the toll booth operator if your vehicle uses LPG: it won't cost you any moreIn English: “Can vehicles that use LPG fuel pass through the Mont Blanc Tunnel? Yes, but they must declare it at the toll. A notice given to the driver must be affixed to the windscreen for the crossing of the tunnel. There is no additional cost. […] (second sentence is in English on the operator's own English page)”Tunnel du Mont-Blanc FAQ · tunnelmb.net · read 2026-10-29

  Nothing official found on a caravan's own gas bottles in the tunnel. The tunnel's FAQ refuses our checker (403); the LPG line was read by the second researcher.

• P&O Ferriespartly verified
  Camping car, caravan or mobile home: at most 3 butane/propane bottles under 47 kg; no extra fuel in containers

  Source: poferries.com

  Maximum 3 gas cylinders for propane/helium aerostat use weighing less than 47 kg. 1 fire extinguisher weighing less than 5kg. […] Only manufacturer LPG vehicles are authorized to transit on the ship. […] CAMPING CAR - CARAVANS - MOBILE HOMES — You can carry: All the elements of passenger vehicles described above. As well as : Maximum 3 bottles of butane/propane gas weighing less than 47kg […] ALL PASSENGERS — No additional fuel may be carried in containers of any quantity.P&O Ferries, prohibited items · poferries.com · read 2026-10-29

  Only factory-built LPG vehicles may sail

  Source: poferries.com

  Maximum 3 gas cylinders for propane/helium aerostat use weighing less than 47 kg. 1 fire extinguisher weighing less than 5kg. […] Only manufacturer LPG vehicles are authorized to transit on the ship. […] CAMPING CAR - CARAVANS - MOBILE HOMES — You can carry: All the elements of passenger vehicles described above. As well as : Maximum 3 bottles of butane/propane gas weighing less than 47kg […] ALL PASSENGERS — No additional fuel may be carried in containers of any quantity.P&O Ferries, prohibited items · poferries.com · read 2026-10-29

  P&O's page refuses our checker (403); read by the second researcher.

• Stena Line (UK routes)verified
  Up to 3 cylinders, 47 kg in total, for a campervan or caravan; valve closed for the whole sailing; acetylene never allowed

  Source: stenaline.co.uk

  Gas Cylinders (example for camping or cooking) Max 3 cylinders with a combined weight of 47kg (for use in campervans, caravans, or ballooning). Reminder: the valve must be closed during the entire sailing.Stena Line UK, 'Transporting of restricted items' · stenaline.co.uk · read 2026-10-29
• Tallink Siljaverified
  Gas cylinders in vehicles or trailers stay closed for the journey; in a caravan or motorhome the cylinder must be part of the equipment or in its designated place, closed and securely fastened

  2 sources: tallink.com

  Gas cylinders in vehicles or trailers must remain closed during the journey. Transport of flammable liquids in separate containers is not allowed. Transporting gas cylinders Passengers may bring gas cylinders classified as dangerous goods free of charge in the following cases: In a caravan or motorhome: the gas cylinder must be part of the vehicle’s equipment or placed in a designated location. During the journey, the cylinder must be closed and securely fastened.Tallink, 'Safety & security' · tallink.com · read 2026-10-29

  Passengers may bring gas cylinders classified as dangerous goods free of charge in the following cases: In a caravan or motorhome: the gas cylinder must be part of the vehicle's equipment or placed in a designated location. During the journey, the cylinder must be closed and securely fastened. LPG gas cylinder for personal use: passengers may bring a standard LPG gas cylinder, including a larger cylinder, if it is intended for personal use. The cylinder must be tightly closed. Transporting several cylinders must be booked through cargo services. […] All other loose cylinders or cylinders transported in bulk must be booked through cargo services.Tallink, safety and security · tallink.com · read 2026-10-29
• Viking Linepartly verified
  Gas in a caravan: the bottle's place marked, the main valve closed and sealed with adhesive tape (available from the staff); gas cylinders in other vehicles not allowed

  Source: sales.vikingline.com

  Gas cylinders — If you want to transport gas in your caravan, please make sure that the location of the gas bottle is marked and that the main valve is closed and sealed with adhesive tape that can be obtained from our staff. The carriage of gas cylinders in other vehicles is not permitted. […] Vehicles powered by CBG or CNG are allowed. LPG-powered vehicles are not permitted. […] Flammable liquids in individual containers and barbecue charcoal cannot be transported on the car deck.Viking Line, Good to know: vehicles · sales.vikingline.com · read 2026-10-29

  Vehicles running on LPG are not carried (CNG and CBG are)

  Source: sales.vikingline.com

  Gas cylinders — If you want to transport gas in your caravan, please make sure that the location of the gas bottle is marked and that the main valve is closed and sealed with adhesive tape that can be obtained from our staff. The carriage of gas cylinders in other vehicles is not permitted. […] Vehicles powered by CBG or CNG are allowed. LPG-powered vehicles are not permitted. […] Flammable liquids in individual containers and barbecue charcoal cannot be transported on the car deck.Viking Line, Good to know: vehicles · sales.vikingline.com · read 2026-10-29

  Viking Line's page refuses our checker (403); read by the second researcher.

How we checked

Each line rests on official sentences — a law, an authority, a city or the operator's own page. A line reaches the page only if its quoted words are found again on the live source page (where the site lets us check), three independent automated readings judge that the quotes support it, and a second researcher who never saw the first answers was asked the same questions. Where nothing could be confirmed the entry says so; we did not fill gaps from memory or from other lists.

This is a reading of the rules, not legal advice; the signs on the road, the operator and the police where you drive have the last word.