eCFR
49 CFR 178.346 — Specification DOT 406 Cargo Tank
Construction spec for DOT 406 tanks: gasoline, diesel and other flammable liquids.
The construction specification DOT 406 cargo tanks are built to. The 406 replaced the MC 306. These tanks typically haul gasoline, diesel, fuel oil and other flammable liquids.
Open it when you need to know what a DOT 406 is supposed to be as built. For testing and inspecting a tank already in service, go to 49 CFR 180.407.
What a given tank may haul is set by the hazmat rules for each product, not by the tank type alone.
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