Frejus Road Tunnel
Italy · A32 (IT, SITAF) / A43 (FR), cross-border Bardonecchia IT - Modane FR · 12.9 km
What this restriction means
ADR assigns every tunnel a restriction category from A (no restrictions) to E (the strictest).
Closed to loads that could cause a large or very large explosion, or a major toxic release — toxic and oxidising goods on top of category B. Marked with a 'C' sign.
Official ADR wording
Restriction for the carriage of dangerous goods which may lead to a very large explosion, a large explosion or a large toxic release. Covers all goods restricted in category B, plus: Class 1 Divisions 1.1, 1.2, 1.5 (except groups A and L) and Division 1.3 (groups H and J); Class 7 UN 2977 and 2978. When net explosive mass per transport unit > 5000 kg: Class 1 Division 1.3 (groups C and G). When carried in tanks: Class 2 codes 2A, 2O, 3A, 3O and codes with letter T only or letter groups TC, TO, TOC; Class 3 PG I for codes FC, FT1, FT2, FTC; Class 6.1 PG I except UN 1510; Class 8 PG I for codes CT1, CFT, COT.
Which cargo is affected
Category C tunnels also restrict goods that could cause a large explosion or a large release of toxic gas.
Restrictions & provenance
ADR category C: dangerous-goods transport units prohibited, EXCEPT class 2 goods of classification codes 2A, 2O, 3A and 3O (asphyxiant and oxidising liquefied / refrigerated liquefied gases) carried in tanks, admitted with mandatory escort. Règlement de circulation du tunnel routier du Fréjus, applicable since 29 June 2020; notified by France under ADR 1.9.5.
MIT - Ministero delle Infrastrutture e dei Trasporti (Direzione generale per la motorizzazione), via UNECE 1.9.5 notification; cross-border tunnels notified by France to UNECE
Source ↗Plan compliant routes, end to end
A DGSA plus the platform turn tunnel codes into compliant routes, transport documents and driver instructions — not just a lookup.


