Analyzing a Used TMA Truck in Terms of Highway Safety

A used TMA truck can be a smart buy or a costly mistake. Check the compliance, the crash history, and the deadline before you commit.

Used attenuator trucks can save real money, but the wrong one becomes a liability parked in your yard. Before you buy, look past the mileage and the paint. The questions that matter are about compliance, past impacts, and how much service life is left.

Compliance comes first

Confirm the attenuator meets MASH 2016 and has an FHWA Hardware Eligibility Letter for its model. Pay close attention to the 2030 deadline: non-MASH-2016 units built before January 1, 2023 must be off the road by January 1, 2030. A cheap older unit with a short runway is not a bargain.

• Verify the MASH 2016 test level, TL-2 or TL-3, matches your work zones.
• Ask for the eligibility letter and any re-certification records.
• Check the host truck GVWR is roughly 26,000 lb or more.
• Ask whether the unit has ever taken an impact, and get the repair history.
• Inspect the frame, hydraulics, cartridges or blades, lights, and boards.

Get it inspected before you sign

A previously struck unit is not automatically bad, but it must have been repaired with correct parts and re-certified. Have a service center that knows attenuators inspect the truck before purchase. Hidden frame or hydraulic damage from an old impact is exactly what a walkaround misses.

Is a struck-and-repaired unit safe to buy?

It can be, if it was repaired with correct parts and re-certified to its test level. Ask for the documentation and have it inspected.

What if the seller has no eligibility paperwork?

Treat missing compliance paperwork as a red flag. Without it you cannot confirm the unit is legal for federal-aid projects.