(b) Definition.— For purposes of this section
(1) the term prior domestic violence or stalking offense means a conviction for an offense
(B) under State law for an offense consisting of conduct that would have been an offense under a section referred to in subparagraph (A) if the conduct had occurred within the special maritime and territorial jurisdiction of the United States, or in interstate or foreign commerce; and
(2) the term State means a State of the United States, the District of Columbia, or any commonwealth, territory, or possession of the United States.