The Secretary or the Administrator, consistent with section
1903 of this title, shall prescribe regulations applicable to the ships of a country not a party to the MARPOL Protocol (or the applicable Annex), including regulations conforming to and giving effect to the requirements of Annex V and Annex VI as they apply under subsection (a) of this section, to ensure that their treatment is not more favorable than that accorded ships to parties to the MARPOL Protocol.