It's okay for chemical weapons it's okay for biological weapon at the toxin and bacteriological, but not the viral.

CENTERFORSECURITYPOLICY: Remarks to the Council on Foreign Relations

This scuttled treaty is known as the BWC Protocol, since it purports to strengthen the Biological Weapons Convention of 1972 that bans the use, stockpiling and production of bacteriological weapons.

CENTERFORSECURITYPOLICY: Why Bush Is Right to Reject a Defective B.W.C. Protocol