After hearing that several groups were hoping that they could have more time (beyond the current deadline of September 21) to prepare a Public Comment on the Advanced Notice of Proposed Rule Making (ANPRM) on Underride Protection of Single Unit Trucks, I contacted NHTSA and filed a request to extend the Public Comment period.
The agency replied that they are considering my request. It usually takes at least 10 calendar days for such a process. I hope that this helps with providing useful information but does not lead to unnecessary delay of the needed rulemaking.
Photo by me of a Single Unit Truck I saw on the expressway a few months ago.
Note the wimpy rear underride guard.
Donate now & support Underride Research to Prevent Underride and Save Lives: https://www.fortrucksafety.com/