Until the BWM Convention enters into force, what regulations on ballast water management must a ship comply with?

Any applicable national regulations of a coastal State or region whose waters the ship will enter, and, in a federation of states such as the US or Australia, any applicable state regulations (e.g. California or Victoria (Aus. ) regulations). Individual ports may also have their own ballast water discharge requirements, even where the port State has no national ballast water regulations.