Hello,
The harvesting or commercial fishing sector of the industry is a diverse group of individuals and businesses whose income is derived in whole or in part by selling the fish or shellfish that they harvest.
New York State requires residents who take and land food fish for commercial purposes (taking food fish by any method for subsequent sale, trade or barter) to purchase a commercial fishing license. It is not legal to sell fish without this license. In addition, a license is required to commercially harvest crustaceans (lobsters and crabs) and shellfish (hard clams, soft clams, surf clams, oysters, mussels, and scallops).
These licenses are available from the NYS Department of Environmental Conservation (DEC)
Call: 518-402-8545
Click on the underlined link to learn more, but I believe the website is currenty unavailable, so it would be best to call.