The purposes of this chapter are—
((1)) to mandate United States sanctions, and to encourage international sanctions, against countries that use chemical or biological weapons in violation of international law or use lethal chemical or biological weapons against their own nationals, and to impose sanctions against companies that aid in the proliferation of chemical and biological weapons;
((2)) to support multilaterally coordinated efforts to control the proliferation of chemical and biological weapons;
((3)) to urge continued close cooperation with the Australia Group and cooperation with other supplier nations to devise ever more effective controls on the transfer of materials, equipment, and technology applicable to chemical or biological weapons production; and
((4)) to require Presidential reports on efforts that threaten United States interests or regional stability by Iran, Iraq, Syria, Libya, and others to acquire the materials and technology to develop, produce, stockpile, deliver, transfer, or use chemical or biological weapons.