Motorhome routing in France: tunnels, tolls, Crit’Air (2026)

By Rovee · Reviewed and updated 2026-07-10

Dimensions

France has no national statutory height ceiling for motorhomes; the law caps width at 2.55 m (Art. R312-10) and length at 12 m (R312-11). Infrastructure limits — tunnels, urban underpasses, age of road network — govern in practice. The 3.5 t PTAC threshold is the line between Cat B licence (light vehicle, €68 ZFE fines) and C1 licence (3.5–7.5 t, €135 ZFE fines).

Tunnels

Three pinch points break tall motorhomes routinely: Vieux-Port Marseille (3.20 m gabarit — physically stops most coachbuilts), A86 Duplex SW Paris (2.00 m total ban for any motorhome), and Croix-Rousse Lyon (3.5 t weight limit). Alpine border tunnels — Mont Blanc 4.35 m, Fréjus 4.30 m, Puymorens 4.50 m — accept standard motorhomes but ban all dangerous goods.

Tolls

Under 3 m tall and under 3.5 t, you pay Class 2 (same rate as a small van). Above either threshold with a two-axle rig, Class 3 — roughly 130% of the car rate. Most tall European motorhomes fall in Class 3, not Class 4. Consumer Liber-t tags only accept Classes 1, 2, 5 — Class 3 motorhomes use cash, chip-and-PIN, or a professional Eurotoll account.

Crit’Air

You need a Crit’Air sticker (€3.72) to enter the Paris low-emission zone (ZFE), Lyon ZFE, and 8+ other city centres. Crit’Air 3 and worse are banned in Paris on weekdays 8h to 20h. The April 14, 2026 national ZFE suppression matters less than it sounds — Paris, Lyon, Marseille, Grenoble maintain their own ZFE under municipal authority. Several smaller cities (Strasbourg, Rouen, Reims) historically exempt camping-cars — verify before travel.

The four things every UK-registered motorhome owner gets wrong driving south through France: which toll category to pay, whether the tunnel ahead will actually fit, which Crit’Air sticker is required for the city centre they’re heading into, and whether the autoroute speed limit is the car limit or the heavy-vehicle limit. This page covers all of it, plus the unsigned low-bridge hotspots and the routing tools worth installing before you cross the Channel.

Legal dimensions for motorhomes in France

France’s Code de la route sets statutory width and length but no national height ceiling for vehicles up to 12 metres long. Infrastructure limits — tunnels, urban underpasses, age of road network — govern in practice, and they’re not always signed below 3.50 m on rural roads. The threshold that does matter legally is 3.5 t PTAC (poids total autorisé en charge — gross laden weight on the registration).

The route-type picture: autoroutes and national routes (RN) guarantee tunnel clearance ≥ 4.30 m by construction norm. Departmental routes (RD) have no minimum clearance guarantee — railway crossings and urban underpasses can be as low as 2.60 m and aren’t always signed below 3.50 m. Urban areas are entirely sign-governed: Paris Boulevard Périphérique is 4.75 m, the A86 Duplex (SW Paris) is a 2.00 m total ban for any motorhome, and many provincial city underpasses sit at 3.50 m or less.

Restricted tunnels — France

Fifteen tunnels and one toll-plaza category that matter for motorhome routing. Heights and ADR (dangerous-goods) categories are from Bison Futé and the CETU Atlas des Tunnels Routiers (Jan 2025 edition, the Ministry of Transport’s authoritative reference). Alternates listed where the tunnel ban applies broadly enough to require rerouting.

Low bridges — the unsigned risk

France has no centralised public database of every sub-3.5 m bridge. The Atlas des Tunnels Routiers covers tunnels above 300 m; bridges are signed locally by the road operator (DIR for national routes; the département for D-roads; the municipality for urban underpasses). On unsigned rural roads below 3.50 m the obligation to sign is weak. The community workaround is a forum-maintained POI database — see the routing tools section below.

Documented hotspots that recur in UK and French motorhome forums:

• Rouen — N338 De la Motte roundabout (2.60 m). The #1 reported pinch point for UK-to-S-of-France routes via Le Havre or Dieppe. Avoid via the D18E east industrial dual carriageway, or the D6015 via Le Port Saint-Ouen.
• Rouen riverside quays (quai de Paris and surrounds). Multiple sub-3.50 m bridges along the Seine embankment in the city centre. The multi-lane approach traps drivers; once committed there’s no easy exit.
• Bécherel (Bretagne). Width trap, not height — the medieval gateway is 2.60 m wide.
• Railway bridges — Tulle (Corrèze) and Marmande (Lot-et-Garonne). Both signed below 3.50 m; both flagged as recurring POIs in the community bridge database.
• A41 — Saint-Félix (Haute-Savoie). Motorway bridge support collision documented in France Bleu news (2024); the route is otherwise standard, but the support clearance has been incident-flagged.

France’s hanging-chain warning system — red-and-white chains suspended before some solid overhead structures — is intended to give drivers a chance to stop when they hit fabric before they hit steel. It is a mitigation, not a guarantee, and is not present on every restricted route. The dimension-aware routing layer — which apps surface restrictions before the route runs into them — is the better safety net; see the low-bridge routing matrix for the full app comparison.

The toll system

French autoroute tolls are run by regional concessionaires (Sanef in the north, Vinci Autoroutes across the centre and south, APRR in the east, ASF along the Atlantic), but they all use the same five-category system. The category is determined at the booth by overhead sensors that measure your height and visually classify your axles.

The relevant breakpoints for motorhomes are these:

• Class 1. Light vehicles under 2 metres tall, MAM (maximum authorised mass — the same figure as PTAC) 3.5 tonnes or below.
• Class 2. Vehicles between 2 and 3 metres tall, MAM 3.5 tonnes or below. Covers most campervans and lower-profile coachbuilts.
• Class 3. Two-axle vehicles above 3 metres tall or above 3.5 tonnes MAM. Covers most A-class and tall C-class motorhomes. Tariff is roughly 130% of the Class 1 rate.
• Class 4. Three-or-more-axle vehicles, including tag-axle motorhomes (some Burstner, Concorde, and US-style RVs), plus HGVs and coaches.
• Class 5. Motorcycles.

For concrete cost, a Paris-to-Lyon run on the A6 is about €40 to €45 for Class 1, €55 to €65 for Class 3. Marseille to the Spanish border via the A8 and A9 is about €55 Class 1, €75 Class 3. Tariff increases happen annually on 1 February, averaging 1% to 1.5% in the most recent rounds.

The toll-tag landscape

The Liber-t electronic toll badge is the consumer answer to French toll booths, marketed under Bip&Go (Sanef), Ulys (Vinci), and Fulli (Eiffage) brand names. You attach it to your windscreen, drive through the orange-orange lane marked with the letter t, the barrier lifts, and you get a monthly invoice. It is genuinely convenient.

The catch for tall motorhomes is the vehicle-class restriction. The consumer Liber-t tag only accepts Classes 1, 2, and 5. If your rig is Class 3 (above 3 metres or above 3.5 tonnes), the consumer tag will not work even if you order one; the booth will register a class mismatch and you will be diverted to the manual lane.

Two options remain. First, pay cash or chip-and-PIN card at each booth. Every booth has a manned cabin and at least one card-only lane; the throughput is slower than Liber-t but the rate is the same. Foreign chip-and-PIN cards are accepted reliably. Second, set up a professional Eurotoll account, run by the Sanef group, which handles classes 3 and 4. Eurotoll is targeted at hauliers and has paperwork and minimum monthly volume terms, but it is the only electronic option for a Class 3 motorhome.

Speed limits

Motorhomes above 3.5 tonnes (PTAC on the registration, not the unladen weight) are treated as poids lourds (heavy vehicles) by the French speed limit table. The limits are:

• 110 km/h on autoroute, where the car limit is 130 km/h.
• 100 km/h on dual-carriageway expressways, where the car limit is 110 km/h.
• 80 km/h on national and departmental two-lane roads, where the car limit is 90 km/h (and 80 km/h on some downgraded D-roads since 2018).
• 50 km/h in built-up areas, same as cars.

Three regulations stack on top of the speed limits and tend to surprise foreign motorhome owners:

• The 80/100/110 stickers. Vehicles above 3.5 tonnes are required to display three circular yellow stickers on the rear, marked 80, 100, and 110, indicating the maximum permitted speed for each road type. They cost about €4 a set and can be ordered online or at any major French motorway service station.
• The 50-metre safe-distance rule. Outside built-up areas, vehicles above 3.5 tonnes or longer than 7 metres must keep at least 50 metres of clear distance to the vehicle in front, if both are moving at the same speed. The rule is enforced and the fine is €135.
• Blind-spot warning stickers. Since January 2021, vehicles above 3.5 tonnes registered in or driving through France must display the orange-and-yellow "Angles morts" stickers on both sides at the front and on the rear. Foreign-registered rigs are not exempt. The fine for non-display is €135, reduced to €90 if paid within 15 days.

Crit’Air and the cities

Crit’Air is France’s national vehicle-emissions sticker system, similar in shape to Germany’s Plakette but with six categories (Crit’Air E, 1, 2, 3, 4, 5) instead of three. The sticker is required to enter any city with an active Zone à Faibles Émissions (ZFE) and is used by enforcement cameras to determine whether your vehicle is admitted that day. Foreign-registered vehicles need to order the sticker before entering an active ZFE; it costs €3.72 and is shipped to a European address. Order at certificat-air.gouv.fr (the official portal — accept no resellers).

Motorhomes follow the same Crit’Air rules as cars; there is no national leisure-vehicle exemption and no day pass. Most diesel motorhomes from 2011 onward are Crit’Air 2; pre-2011 diesels are usually Crit’Air 3 or 4. Petrol motorhomes from 2011 onward are typically Crit’Air 1. Fine structure is two-tier by PTAC: ≤3.5 t = €68 (light vehicle); >3.5 t = €135 (heavy vehicle). Unclassified vehicles (no vignette) take the €68 fine regardless of weight.

The April 2026 national suppression. On 14 April 2026 the French parliament passed the loi de simplification de la vie économique, suppressing the national ZFE mandate that had previously required cities above a population threshold to enforce low-emission zones. Major cities — Paris, Lyon, Marseille, Grenoble — are maintaining their own ZFE under existing municipal authority. The practical change is in the smaller-city tier: planned 2026 rollouts in Toulouse, Montpellier, Nice may be delayed or adjusted. Always verify the current status with the specific city in the week before you travel.

The camping-car exemption gap. Several cities (Strasbourg, Rouen, Reims, Toulouse, Montpellier, Nice) have historically exempted camping-cars from ZFE restrictions, set by local decree. The exemption is not national and not guaranteed to persist. Confirm with the city before you rely on it.

Routing tools — what works, what’s missing

Two community-maintained tools cover the dimension-aware-routing question for France today; neither does the whole job.

Gabary (gabary.com) — iOS and Android. France-only at launch; European expansion announced. You enter vehicle height, width, and weight, and the routing engine avoids low bridges, narrow roads, and weight-limited roads. Two million risk sections visualised via Street View integration; Android Auto supported; community hazard reporting; free core tier. What it adds vs the legacy POI databases: a real-time routing engine and mobile-first interface. What it still doesn’t do: Europe coverage outside France; ZFE / Crit’Air integration; offline-first navigation. CarPlay status was unconfirmed at fact-check — the App Store listing didn’t surface a CarPlay claim either way.

campingcar-bricoloisirs.net POI database (forum thread) — a TomTom POI file (.ov2) marking ~350 documented French bridges with height limitations; approximately two-thirds of French territory covered. Crowd-sourced by forum members. Drivers see a TomTom warning POI as they approach each documented bridge. What it adds vs nothing: an actual data set behind community knowledge. What it doesn’t do: route automatically around bridges (POI alert only); work outside TomTom hardware; cover the unmapped third of France; integrate ZFE-m data; update reliably.

The two tools together still leave three gaps a motorhome driver crossing France actually needs covered: tunnels (no France tunnel routing engine for civilians), tolls by Class (no app predicts your Class 3 toll on a candidate route before you commit), and ZFE by city x Crit’Air x camping-car exemption (no app surfaces "your sticker passes here / fails there / has an exemption you can rely on"). That gap is what Rovee’s planning screen exists to fill.

If you’re routing through France on a CarPlay head unit, the navigation app determines whether Class 3 tolls and ZFE boundaries actually surface on the dash before you commit to the lane. See the CarPlay navigation for motorhomes matrix for which CarPlay-capable apps handle these signals vs which treat your rig as a car.

Rovee predicts your Class 3 toll on each candidate route, flags every active ZFE before you enter, surfaces the tunnel and bridge restrictions that match your rig’s dimensions, and respects the >3.5T speed limit in the ETA. Closed beta now, public launch Friday August 7, 2026; waitlist below.

FAQ

Which French tunnel will my motorhome not fit through?

The Vieux-Port tunnel in Marseille has a 3.20 m gabarit — most coachbuilt motorhomes are taller and will be physically stopped. The A86 Duplex tunnel south-west of Paris is a 2.00 m total ban: no motorhome can enter regardless of class. The Croix-Rousse tunnel in Lyon has a 3.5 t weight limit that bans most A-class motorhomes. The Rouen N338 underpass at 2.60 m is the most reported UK-traveller pinch point on common N-S routes. Mont Blanc (4.35 m), Fréjus (4.30 m), and Puymorens (4.50 m) accept standard motorhomes but ban all dangerous goods.

What class is my motorhome at the toll booth?

If your rig is under 3 metres tall and under 3.5 tonnes (PTAC on the registration), you pay tolls as Class 2, the same rate as small vans. If you exceed either threshold (>3m height or >3.5T MAM) with a normal two-axle motorhome, you pay as Class 3, which is roughly 130% of the car rate. Class 4 is reserved for HGVs and motorhomes with three or more axles (some larger US-style RVs and tag-axle rigs). Class is determined at the toll booth by overhead sensors plus visual inspection.

Why can’t I get a Liber-t tag?

Liber-t electronic toll badges, marketed by Bip&Go and other resellers, only accept vehicle Classes 1, 2, and 5. If your motorhome falls into Class 3 or 4, the standard consumer tag is not compatible. You either pay cash or card at the booth on every transit, or you set up a professional account with Eurotoll (which is part of the Sanef group and handles heavy vehicles). For most foreign-registered Class 3 motorhomes, a chip-and-PIN credit card in the dedicated card lane at each booth is the path of least friction.

Does the Paris ZFE apply to me?

Yes, if your motorhome’s Crit’Air sticker is class 3 or worse, or unclassified. Since 1 January 2025, vehicles with Crit’Air 3, 4, 5, or no classification cannot circulate in Paris intra-muros or on the Boulevard Périphérique on weekdays from 8h to 20h. Most diesel motorhomes from before 2011 are Crit’Air 3 or 4. The pedagogical period (no fines, only warnings) runs until January 2027; after that the standard ZFE fine of €68 applies, dropped to €45 if paid within 15 days.

What happened with the French national ZFE suppression in April 2026?

On 14 April 2026 the French parliament passed the loi de simplification de la vie économique, which suppressed the national ZFE mandate that had previously required cities above a population threshold to enforce low-emission zones. The headline matters less than it sounds: major cities (Paris, Lyon, Marseille, Grenoble) are maintaining their own ZFE rules under existing municipal authority. The bigger practical change is that several smaller cities that were scheduled to roll out new ZFEs (Toulouse, Montpellier, Nice) may delay or adjust. The motorhome impact is unchanged for Paris, Lyon, Marseille; verify status with the specific city in the smaller-municipality cases.

Are there any height-restricted N-roads in rural France?

Yes, occasionally, but they are signposted well in advance. The bigger issue for tall motorhomes is town-centre narrow streets in older Provençal and Breton villages, which are not signposted as height-restricted but become impassable when a butcher’s awning extends across the road. The Rouen N338 De la Motte underpass (2.60 m) is the most reported foreign-driver pinch point — UK-to-S-of-France routes via Le Havre or Dieppe should plan around it explicitly. The general rule is to stay on the D-road network rather than picking shortcuts through villages, and to skip routes that take you under railway bridges in older industrial towns.

Can I tow a car behind a motorhome above 3.5 tonnes in France?

Yes, but the combination is subject to the >3.5T speed limits regardless of what tow vehicle you have. The 50 metres safe-distance rule also applies. You need a category B96 or BE driving licence depending on the trailer weight, and the trailer must have its own registration and number plate. The 80/100/110 speed-limit stickers go on the rear of the trailer if it is the rearmost vehicle in the combination.

What does Rovee do here that a paper map doesn’t?

A paper map shows you the autoroute. Rovee predicts the Class 3 toll for your specific rig on each candidate route, warns you which French cities have an active ZFE before you enter, accounts for restricted tunnels (Vieux-Port, A86 Duplex, Croix-Rousse weight ban) using your rig’s dimensions, and respects the >3.5T speed limit in the ETA so the time estimate matches what you actually drive. The eight things this article covers are the eight things the planning screen needs to know about. Join the waitlist.