Question hauling empty containers

You want the chains on a loaded container anyway.
You heavy brake you might find that container in your front seat lol.

I use 4 straps on empty containers.

 

Bump it 5

 

I just treat them as normal cargo and secure accordingly.

 

You were... I just included extra information.

I don't find it vague. The link @Pedigreed Bulldog posted even says...

Requirement 4: The container is secured to prevent side-to-side, forward, rearward, and upward movement by:

• Either by following the requirements for loaded containers.
• Or by following the general cargo securement requirements (Section 2) for tiedowns.

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If following the second method, the 10 foot tiedown rule does apply.

 

Special Circumstances: Securing Empty Intermodal Containers on Non-Chassis Vehicles (Section 3.6.4)
Empty intermodal containers transported on non-chassis vehicles do not have to have all lower corners resting upon the vehicle or supported by a structure if they meet each of the following four requirements:

• Requirement 1: The container is balanced and positioned on the vehicle so it is stable before adding tiedowns or other securing devices.
• Requirement 2: The container does not hang over the front or rear of the trailer by more than 1.5 m (5 ft).
• Requirement 3: The container does not interfere with the vehicles maneuverability.
• Requirement 4: The container is secured to prevent side-to-side, forward, rearward, and upward movement by:
  • Either by following the requirements for loaded containers.
  • Or by following the general cargo securement requirements (Section 2) for tiedowns.

Seems pretty straight forward. Needs to be stable before securing it. Can't overhang by more than 5'. Can't interfere with maneuverability. Then, once all of that is good, secure it either as you would a loaded container, or as you would any other type of general freight of equal size and weight. That coud be straps, chains, or any combination thereof to prevent movement forward, backward, sideways, or up.

 

Not if its 40 feet long. 5 straps