You can get bark just fine, only need to worry about customs possibly seizing it but they won't do anything to you. Technically root bark is legal, and it's legal to grow your own plants, but consuming it for the DMT content or extracting the DMT is considered illegal. Some say that even the root is illegal because of the federal analog act which states that any amount of any scheduled substance in any material is illegal, but that's retarded and you're not going to get in trouble unless maybe you're selling DMT and a "friend" turns you in, so if using DMT, keep it to yourself. As far as Aya goes though, while it's still technically illegal here in the US because of the DMT content, the brew is more protected/accepted as a legal spiritual/religious sacrament and so is less likely to get people in trouble if working with it on your own, just don't go out there leading ceremonies or what not imo lol.