49 U.S.C. § 46312 — Transporting hazardous material

(a) In General. A person is fined under title 18, imprisoned up to 5 years, or both, if — in violation of a Secretary of Transportation rule or requirement on hazardous material transport under this part or chapter 51 — they (1) willfully deliver, or cause to be delivered, hazardous material to an air carrier or aircraft operator for air transport; or (2) recklessly cause that property to be transported in air commerce. (b) Knowledge of Regulations. Whether the person knew the rule or requirement existed is not something the government has to prove to convict them under this section. But the court must weigh that lack of knowledge when deciding on the penalty.