From the Summary: "The Secretary of Commerce is authorized to provide disaster assistance to the fishing industry when fish populations decline or other disruptions cause economic losses. The criteria for determining whether a commercial fishery failure or fishery resource disaster has occurred are provided in Section 308(b) and Section 308(d) of the Interjurisdictional Fisheries Act (IFA; 16 U.S.C. §4107), and in Sections 312(a) and 315 of the Magnuson-Stevens Fishery Conservation and Management Act (MSA; 16 U.S.C §1861(a) and §1864). The governor of a state, the Secretary of Commerce, or a representative of a fishing community may initiate a request for assistance. The National Marine Fisheries Service (NMFS), state agencies, and fishing communities compile information needed to make a determination. When all necessary information has been obtained and reviewed, the Secretary of Commerce determines whether a fishery failure or fishery disaster has occurred. In most cases, Congress has appropriated funds to support the fishing industry following the Secretary's determination. NMFS, states, regional commissions, and industry representatives often work together to plan how assistance will be distributed to the fishing industry and allocated among potential projects."
CRS Report for Congress, RL34209
Congressional Research Service: https://crsreports.congress.gov/