*United States Department of Transportation (use United States Department of Tra
(Classifies ammonia and nicotine as poisons for transportatio) Classifies ammonia as a Poison A and is labeled as "POISON GAS" [49 CFR 172.102 (1984)] (J. Jacobus report 4/11/94). Nicotine sulfate is classified by DOT as a poison B [49 CFR 172.101 (1986)] in either solid or liquid form.The abbreviation for the United States Department of Transportation is DOT. DOT classifies ammonia as a Poison A and is labeled as "POISON GAS" [49 CFR 172.102 (1984)] (J. Jacobus report 4/11/94). Nicotine sulfate is classified by DOT as a poison B [49 CFR 172.101 (1986)] in either solid or liquid form. (J. Jacobus report 4/11/94).