They look like Hutchinson bead locks to me, said to be DOT approved. They are similar to HumVee wheels.
In all of my years off roading I have yet to see anyone produce a ticket/citation for running beadlock wheels. With all of the fake-locks out there now, I doubt most LEO's would even know the difference. When I worked for Allison Transmission I was at one of the city bus barns and there was a CHP inspector there, I asked him about beadlocks...he gave me a blank stare, and asked me Bead...what? I said never mind, didn't want to educate him on the finer points of off highway wheels.