; (2) in subsection (c)— (A) by striking paragraph (1) and redesignating paragraphs (2) and (3) as paragraphs (1) and (2), respectively; and (B) in paragraph (1), as so redesignated— (i) by striking the Atlantic Ocean, including the Caribbean Sea and Gulf of Mexico, that are determined— and inserting the Pacific, Arctic, and Atlantic Oceans, including the Caribbean Sea and Gulf of Mexico, that are determined to pose significant risks of tsunami for States and United States territories along the coastal areas of such regions; and ; and (ii) by striking subparagraphs (A) and (B); (3) by redesignating subsections (d), (e), (f), and (g) as subsections (e), (f), (g), and (h), respectively; (4) by inserting after subsection (c) the following new subsection: (d) Tsunami warning alert level evaluation The Administrator, in collaboration with social scientists, emergency personnel, and high-risk communities, shall— (1) evaluate tsunami alert levels terminology, timing, and effectiveness; (2) determine if such alerts produce the desired response and understanding from possible tsunami-prone communities; and (3) if necessary, update the alert level system for increased effectiveness. ; (5) in subsection (e), as so redesignated— (A) in paragraph (1)— (i) in the matter preceding subparagraph (A), by inserting responsible for Alaska, the continental United States, Hawaii, United States territories, and international entities the Administrator determines appropriate before the period; (ii) in subparagraph (A), by striking which is primarily responsible for Alaska and the continental United States ; and (iii) in subparagraph (B), by striking which is primarily responsible for Hawaii, the Caribbean, and other areas of the Pacific not covered by the National Center ; (B) in paragraph (2)— (i) in subparagraph (A), by inserting current, after sea level, ; (ii) in subparagraph (B), by striking and volcanic eruptions and inserting volcanic eruptions, or other sources