Hazards: Struck by cargo falling or rolling off when tiedowns are released · Load shifting in transit and upsetting vehicle stability · Debris in the roadway striking following traffic · Tiedown failure from a cut, knot, worn edge or an anchor point weaker than the strap
Why it matters
Cargo securement was the vehicle focus of CVSA's 2026 International Roadcheck: out of 54,575 inspections in three days, 1,724 vehicles were put out of service for securement alone — 12.4% of all vehicle out-of-service violations. But the load rarely kills the driver on the highway. It kills the person standing beside the trailer. On October 25, 2024, a worker released the strap holding logs in a trailer so it could be dumped, and a log sitting above the side wall fell on him (OSHA Accident Summary Nr 171310.015). On January 24, 2024, a worker loosening a strap on metal pipes was crushed by a pipe that rolled off the bed (Summary Nr 163492.015).
Key points
- Half the weight, in working load limit. 393.106(d): the aggregate WLL of the tiedowns must be at least one-half the weight of what they hold. Add it up before you drive, not after.
- Count the tiedowns by length. 393.110, unblocked: 1 up to 5 ft and 1,100 lb; 2 up to 10 ft; over 10 ft, two plus one more per additional 10 ft or fraction. Blocked forward: one per 10 ft or fraction.
- The chain is as strong as its weakest link — including the anchor. 393.108: the WLL is the lowest of any component or of the anchor point. A 5,400 lb chain on a tired D-ring is a D-ring.
- Anything that can roll gets chocked. 393.106(c): pipe, coils, drums and logs need chocks, wedges or a cradle that cannot work loose in transit.
- Edge protection where it rubs. Required by 393.104(f)(4) wherever a tiedown would be abraded or cut. A steel edge saws through webbing in miles, not months.
- Unstrapping is the moment it hurts you. The load moved on the road. Stand clear of the fall line, work from the safe side, and never crack a ratchet with your body under the load.
- Recheck after the first miles. Straps relax as a load settles. Pull over, walk it, retension.
Do / Don't
Do
- Read the WLL tags and add them up against the load weight.
- Block and brace forward first, then tie down.
- Walk the load before you release anything, from the ground.
- Release from the side the load cannot fall toward.
Don't
- Guess the strap rating or reuse a cut or knotted one.
- Count on friction alone to hold something that rolls.
- Stand between the trailer and the load when you crack a ratchet.
- Climb on a load to reach a strap you could reach from the ground.
Quick site check
- Pick one loaded truck: count the tiedowns against 393.110 and add the WLLs against half the load weight.
- Inspect the straps and chains in the toolbox for cuts, knots, bent hooks and missing tags.
- Agree where people stand when a load is opened today, and who calls it clear.
- Take the longest thing on the truck today: how many tiedowns does 393.110 give you, and how many are on it?
- Do you know the working load limit stamped on the straps and chains in your truck right now?
- Where on a load do you stand when you crack the first ratchet — and what is behind you?
- Which loads here roll, and what stops them other than the strap?
- Who checks the load after the first few miles, and where do you pull over to do it?