'Any casino could easily say, it's against their policy and it's a done deal. Simple enough to accept?'

All casinos must write "Internals," for each department. Internals tell the GCB how that casino is going to enforce Gaming Regs. Casinos can interept the Gaming Regs differently. If a casino puts in their "Internals" that they will not sell chips from the cage, then it becomes a Gaming Reg to that casino. If they do sell from the cage they are violating their "Internals', and therefore they are violating Gaming Regs.