Jake, are the Biota yellow tang all F1s? Do you have any F2, F3, etc. production?DLNR could likely help you out with clarification especially on rehoming them. I know mainland US many public aquariums take rehomed fish when they grow to large for aquariums, especially on the freshwater side so it may be similar.
One of the main issues is there is no difference between captive-bred or wild collected in appearance so someone could claim they are breeding them and thus attempt to sell or export them. To our knowledge no personal hobbyist has been able breed any tang species at home. For the yellow tang only our facility and a small batch from a facility in Japan are the only successes I'm aware of. I would assume they would need some inspection and proof and the fines for doing that are very high so I wouldn't imagine it is worth it.