Stipends are available, subject to the availability of appropriations, to members of committees formally designated as SSCs under Sec. 301(g)(1)(a) or APs under Sec. 302(g)(2) of the Magnuson-Stevens Act who are not employed by the Federal Government or a State marine fisheries agency. For the purposes of this section, a state marine fisheries agency includes any state or tribal agency that has conservation, management, or enforcement responsibility for any marine fishery resource.