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The Daily Insight

What does DOT 406 mean?

Author

Ava Richardson

Updated on May 04, 2026

What does DOT 406 mean?

DOT 406 – Maximum operating pressure of up to 4 psi. Oval or egg-shaped cross-section. Flat or nearly flat ends. Aluminum – primary material of construction. Usually multi-compartmented.

What is a DOT 407 tanker?

MC-307/DOT 407 tankers are a usually a horseshoe shape when viewed from the rear. They carry vegetable oils, syrups, and milk and they also carry solvents, lubricants, mild corrosives, etc. Some of these tankers are uninsulated, appear round with small ridges, and are usually unpainted aluminum if un-insulated.

What is a 407 trailer?

The DOT 407 tank trailer unit is a durable stainless-steel tank trailer designed to move general chemicals and related products efficiently, economically, and safely.

What class of materials are commonly shipped in a DOT 412 trailer?

MC 312/DOT 412 tankers are used exclusively to transport corrosive liquids. Corrosives are usually heavy materials, so the tank has a small diameter with reinforcing rings around the outside. These tanks are considered low-pressure containers much like the 307/407.

What is mc306?

Motor Carrier (MC)-306/ 406 transport tanker trailers, better known as gasoline tankers, are the most common types of large-capacity, hazardous materials transport trucks on the road. Although MC-306/406 tankers are used to transport products from sewage to poisons, they usually transport gasoline and diesel fuel.

What is a DOT 406 trailer?

A DOT 406 specification tank meets the federal requirements for the transport of Gasoline and AvGas over public roadways per Title 49 (Transportation) for transport in bulk containers. DOT406 tanks are also suitable for the transport of Diesel Fuel and Jet-A, BUT NOT REQUIRED.

What does a mc331 carry?

MC-331 is a specification for the construction of tank trucks designed to carry liquefied gases and high vapor pressure materials regulated by the US Department of Transportation i.

What is a coded trailer?

Most coded trailers are unloaded using air pressure. When a “code” trailer wont pass a thickness test, usually it will be made into a non code trailer. For hauling water, fert, manure, etc you do not need a in code trailer.

What road trailer would haul cryogenics?

MC338. This trailer is primarily used for Cryogenic liquids.

What is the most common cargo tank for liquids?

MC406
There are many types of cargo tanks in use. The most common cargo tanks are MC406 for liquids and MC331 for gases.

What is an authorized representative for health insurance?

Someone who you choose to act on your behalf with the Marketplace, like a family member or other trusted person. Some authorized representatives may have legal authority to act on your behalf.

How can you differentiate high pressure tank cars from other cars?

Pressure tank cars and non-pressure tank cars can be differentiated by looking at the locations of valves and other piping on the tops of the cars. On a pressure car all valves and piping are enclosed within a dome at the top center of the tank car. The dome is designed to prevent damage during a derailment.