50 CFR §648.146

Vessels that are not eligible for a black sea bass moratorium permit under § 648.4(a)(7), and fishermen subject to the possession limit specified in § 648.145(a), may possess black sea bass only from May 15 through September 30, unless otherwise specified in the conservation equivalent measures described in § 648.151 or unless this time period is adjusted pursuant to the procedures in § 648.142. However, possession of black sea bass harvested from state waters outside of this season is allowed for state-only permitted vessels when transiting Federal waters within the Block Island Sound Transit Area provided they follow the provisions at § 648.151 and abide by state regulations. Vessels landing black sea bass in a state with an approved Wave 1 recreational fishery are subject to the state regulations regarding fishing season during that Wave 1 fishery.