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 Section 603 of the Harmful Algal Blooms and Hypoxia Research and Control Act of 1998 ( 33 U.S.C. 4001 ) is amended— (1) in subsection (a)— (A) in the subsection heading, by striking Inter-Agency Task Force and inserting Interagency Working Group ; and (B) in the matter preceding paragraph (1), by striking an Inter-Agency Task Force on Harmful Algal Blooms and Hypoxia. and inserting an Interagency Working Group on Harmful Algal Blooms and Hypoxia (hereafter referred to as the Task Force ). ; (2) by striking subsections (b), (c), (d), (e), (h), and (i) and redesignating subsections (f) and (g) as subsections (b) and (c), respectively; (3) in subsection (b), as so redesignated— (A) in paragraph (1), by striking coastal waters including the Great Lakes and inserting marine and freshwater systems ; and (B) in paragraph (2)— (i) by amending subparagraph (A) to read as follows: (A) examine the causes and ecological consequences of low oxygen on marine and aquatic species in their natural environments, the social and economic costs of hypoxia, and the cultural impacts of hypoxia; ; (ii) by redesignating subparagraphs (B) through (D) as subparagraphs (C) through (E), respectively; (iii) by inserting after subparagraph (A) the following new subparagraph: (B) examine the effect of other environmental stressors on hypoxia; ; (iv) in subparagraph (C), as so redesignated, by inserting , social, after ecological ; and (v) in subparagraph (D), as so redesignated, by striking hypoxia modeling and monitoring data and inserting hypoxia modeling, forecasting, and monitoring and observation data