I ran across this earlier when looking for a belt for my kit (finally resurrecting this project after 2+ years of being on the back burner), I'm assuming it would be approved. The buckle design also gives you a nice visor nod for the civilian garb times:
https://smile.amazon.com/gp/product/B019SSLGB6/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1Related question, does anyone have experience with using a ratchet belt on their kit? My main concern is whether the weight of pouches and accessories might pull it loose, or whether you run into issues with hitting the release lever on it.