Child Passenger Safety Glossary of Terms
This area is designed to provide consumers with a generalized view of important child passenger safety terms.
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U-Z
- Delta V
The change in velocity or speed. A measurement that indicates the severity of the crash.
- Emergency Locking Retractor (ELR)
A retractor on a safety belt system that locks in response to rapid deceleration of the vehicle. ELRs respond to pressure applied to the belt or the sudden change in motion of the vehicle or both.
- Emergency Management Retractor (EMR)
A retractor that has a torsion bar inside the webbing spool that twists when high force is applied to the belt. Allows some webbing to unwind from the retractor. Functions like an ELR in conjunction with CRs.
- Excursion
The distance traveled by an occupant or test dummy in the direction of impact during a crash.
- FAA approval
Certification that the child restraint meets the compliance test (within FMVSS 213) that is required for use on aircraft.
- FMVSS 208
Federal Motor Vehicle Safety Standard that governs vehicle safety restrain systems.
- FMVSS 213
Federal Motor Vehicle Safety Standard that pertains to all seating systems intended for use as crash protection in vehicles for children up to 50 pounds.
- FMVSS 225
Federal Motor Vehicle Safety Standard that pertains to the standardized vehicle anchorage systems (upper and lower) that are independent of the vehicle seat belts.
- Forward facing Child Restraint
A restraint system that is intended for use only in the forward facing position for a child at least age 1 and at least 20 pounds.
- Frontal Collision/Impact/Crash
An impact at the front end of the vehicle. The most common and usually the most severe type of collision.
Supplimental information provided by National Highway Traffic Safety Administration. For further information, go to http://www.nhtsa.dot.gov/CPS/.
