Interpretation ID: aiam2843
560 Sylvan Avenue
P.O. Box 1606
Englewood Cliffs
NJ 07632;
Dear Mr. Iinuma: This responds to your May 25, 1978, question concerning the strengt requirements of Safety Standard No. 210, *Seat Belt Assembly Anchorages*, as they would be applicable to the anchorage on a single diagonal passive belt system. You ask how many pounds of force should be applied to such a belt system for the anchorage strength test.; The anchorage for a single diagonal passive seat belt should be teste with a 3,000 pound force for purposes of the Standard 210 requirements, the same force required for the upper torso portion of a Type 2 seat belt. Most vehicles with single diagonal passive belt will have knee bolsters or some other method to restrain the legs in a crash, so the anchorage will not experience as much stress as would be placed on a lap belt without knee bolsters. Therefore, 3,000 pound test should ensure that the anchorage for a diagonal passive belt can withstand typical crash forces.; Sincerely, Joseph J. Levin, Jr., Chief Counsel