Dan, We sent our helmet back to Simpson and they installed a cable loop on the lower edge of the helmet and supplied a harness with quick release latchs to limit forward movement. I asked at the time if the system was 38-1 complient and they said yes. I looked for any complience tag when I got it back and there wasn't any. Does it need a tag, or is it by nature complient? I hate dealing with the unknown. Since we aren't dealing with much chance of forward impact, [unless you get to the floating mountain] , the system is most likely O.K. Just trying to get ahead of the curve.