It's a lot more complicated than that. legally, in Indiana. A permit must be secured, and a quarterly report must be submitted to the state listing size, number and location/gps coordinates of all grass carp stocked within Indiana.....technically now, a permit must also be secured through the Indiana BOAH as well.....
The GC must also be individually blood tested and certified triploidy by a US Fish and Wildlife agent as well....
Does the burden fall upon you, the supplier, or me, the purchaser? I've never done anything other than contact the hatchery and place an order.