water discharge requirements (a) In general (1) Requirements Except as provided in paragraph (3), and subject to sections 151.2035 and 151.2036 of title 33, Code of Federal Regulations (as in effect on the date of the enactment of this Act), an owner or operator may discharge ballast water into navigable waters of the United States from a commercial vessel covered under subsection (b) only if— (A) by applying the best available technology that is economically achievable, the discharge meets the ballast water discharge standard