HB 662 -- Anhydrous Ammonia Sponsor: Sutherland This bill creates the crime of unlawful release of anhydrous ammonia, a class B felony. The offense is committed when a person who does not have lawful control of anhydrous ammonia allows the release or escape of the ammonia into the atmosphere. The offense becomes a class A felony if the release of ammonia causes death or serious injury to a person.Copyright (c) Missouri House of Representatives