1. Short title This Act may be cited as the Harmful Algal Bloom and Hypoxia Research and Control Amendments Act of 2023 . 2. Amendments to the Harmful Algal Blooms and Hypoxia Research and Control Act of 1998 (a) Assessments (1) In general Section 603 of the Harmful Algal Blooms and Hypoxia Research and Control Act of 1998 ( 33 U.S.C. 4001 ) is amended— (A) in the section heading, by striking Assessments and inserting Task Force, assessments, and Action Strategy ; (B) in subsection (a)— (i) by redesignating paragraphs (13) and (14) as paragraphs (14) and (15), respectively; and (ii) by inserting after paragraph (12) the following: (13) the Department of Energy; ; (C) by striking subsections (b), (c), (d), (e), (g), (h), and (i) and redesignating subsection (f) as subsection (b); (D) in subsection (b), as so redesignated— (i) in paragraph (1), in the first sentence, by striking coastal waters including the Great Lakes and inserting marine, estuarine, and freshwater systems ; and (ii) in paragraph (2)— (I) by amending subparagraph (A) to read as follows: (A) examine— (i) the causes and ecological consequences of hypoxia on marine and aquatic species in their natural environments; and (ii) the socio-cultural or economic costs of hypoxia, including impacts on food safety and security; ; (II) by redesignating subparagraphs (B), (C), and (D) as subparagraphs (D), (E), and (F), respectively; (III) by inserting after subparagraph (A) the following: (B) examine the effect of other environmental stressors on hypoxia; (C) evaluate alternatives for reducing, mitigating, and controlling hypoxia and its environmental impacts; ; (IV) in subparagraph (D), as redesignated by subclause (II), by inserting , social, after ecological ; and (V) in subparagraph (E), as redesignated by subclause (II), by striking hypoxia modeling and monitoring data and inserting hypoxia modeling, forecasting, and monitoring and observation data