263Permanent ballast water in sealed tanks not subject to this Chapter

263  Permanent ballast water in sealed tanks not subject to this Chapter   This Chapter does not apply in relation to permanent ballast water that is in a sealed tank on a vessel and is not discharged from the vessel. 263A  Warships, naval auxiliary or other vessels owned or operated by the Australian government or the government of a foreign country   This Chapter does not apply in relation to vessels referred to in Article 3.2(e) of the Ballast Water Convention. Note: Article 3.2(e) of the Ballast Water Convention refers to “any warship, naval auxiliary or other ship owned or operated by a State and used, for the time being, only on government non‑commercial service”.