33 USC 2404 - Prohibition of certain organotin antifouling paints and organotin additives used to make such paints

(a) Interim prohibition of certain organotin antifouling paints 
Subject to section 12 (d), no person in any State may
(1) sell or deliver to, or purchase or receive from, another person an antifouling paint containing organotin; or
(2) apply to a vessel an antifouling paint containing organotin;

unless the antifouling paint is certified by the Administrator as being a qualified antifouling paint containing organotin.

(b) Prohibition of certain organotin additives 
Subject to section 12 (d), no person in any State may sell or deliver to, or purchase or receive from, another person at retail any substance containing organotin for the purpose of adding such substance to paint to create an antifouling paint.