I'm no expert, mostly just large mouthed, but, I think you have to get your stock from a registered hatchery with a license:
https://www.dec.ny.gov/outdoor/52348.htmlMy assumption is that if the species is not on one of their sale lists, then you cant buy it or stock it.
I think all stock also have to have a certification of inspection, which sounds like it would be painful if you don't go through a registered hatchery. I'm going to show my ignorance... What is HSB?