The intent of this report is to present a resume of the dynamic evaluation of lap-type safety harness testing at the Testing Agency for the California Highway Patrol. The report includes the design considerations for the system, a summary of early tests, and a resume of current tests indicating the type of belt failures which did, and still are occurring. Included also are the changes in California's test specifications along with the reasons for these changes.

The Testing Agency is presently constructing a new research and test facility. The horizontal sled's capabilities are described and the proposed research is outlined. We will, by the end of this year, be verifying the field test data now available, and under controlled laboratory conditions, be investigating the interaction of the body and restraint systems.