National Automotive Sampling System Law and Legal Definition

National Automotive Sampling System ( NASS) was a system developed in 1979 as part of the nationwide effort to reduce motor vehicle crashes, injuries, and deaths on the U.S. highways. The NASS is operated by the U.S. National Highway Transportation Safety Administration (NHTSA). It is a part of the NHSTA electronic data system.

The NASS collects data that help government scientists in analyzing and studying motor vehicle crashes and injuries. This system maintains elaborate data on a representative random sample of minor, serious, and fatal motor vehicle crashes. Random samples may be drawn from crashes involving passenger cars, pick up trucks, vans, large trucks, and pedestrian crashes. The samples are based on cases selected from police crash reports within different areas of the U.S.

The NASS is composed of two systems:

1. The Crashworthiness Data System (CDS): CDS data focuses on passenger vehicle crashes, and are used to investigate injury mechanisms to identify potential improvements in vehicle design.

2. The General Estimates System (GES): GES data focus on the bigger overall crash picture, and are used for problem size assessments and tracking trends.