; and (C) identify data and analysis, especially concerning recreational fishing, that, if available, would reduce uncertainty in and improve the accuracy of future stock assessments, including whether such data and analysis could be provided by fishermen, fishing communities, universities, and research institutions. (3) Waiver of stock assessment requirement Notwithstanding subparagraphs (A)(ii) and (B)(ii), a stock assessment is not required for a stock of fish in the plan if the Secretary determines that such a stock assessment is not necessary and justifies such determination in the Federal Register notice required by this subsection. . (2) Deadline Notwithstanding paragraph (1) of section 404(f) of the Magnuson-Stevens Fishery Conservation and Management Act, as amended by this section, the Secretary of Commerce shall issue the first stock assessment plan under such section by not later than 2 years after the date of enactment of this Act. (c) Improving science (1) Incorporation of information from wide variety of sources Section 2(a)(8) of the Magnuson-Stevens Fishery Conservation and Management Act ( 16 U.S.C. 1801 ) is amended by adding at the end the following: Fisheries management is most effective when it incorporates information provided by governmental and nongovernmental sources, including State and Federal agency staff, fishermen, fishing communities, universities, and research institutions. As appropriate, such information should be considered the best scientific information available and form the basis of conservation and management measures as required by this Act. . (2) Improving data collection and analysis Section 404 ( 16 U.S.C. 1881c ), as amended by this section, is further amended by adding at the end the following: (g) Improving data collection and analysis (1) In general The Secretary, in consultation with the Councils acting in reliance on their science and statistical committees established under section 302(g), shall develop and publish in the Federal Register guidelines that will