Lap Belts NHRA Tech Inspection

I have a '73 Dart that when purchased, did not have any seat belts in the car. A few years ago, I went to O'Reilly's, bought a set of lap belts, and bolted them to the factory seat belt mounts. Will this pass tech at an NHRA track? I'm getting the car ready to run in January, and I don't want to get turned away because of it.