WY Stat § 31-5-959 (2021)
2021 Wyoming Statutes|Title 31 - Motor Vehicles|Chapter 5 - Regulation of Traffic on Highways|Article 9 - Equipment|Section 31-5-959 - Vehicles Transporting Hazardous Materials.

31-5-959. Vehicles transporting hazardous materials.| (a) Any person operating any vehicle transporting any hazardous materials, hazardous substance, hazardous waste, marine pollutant or radioactive material as a cargo or part of a cargo upon a highway shall at all times comply with regulations of the department adopted pursuant to W.S. 31-18-303. The regulations shall be consistent with current hazardous materials regulations of the United States department of transportation.  (b) No person shall dispose of or deposit any hazardous materials, hazardous substance, hazardous waste, marine pollutant or radioactive material upon any public street, road or highway in the state. However, the department of environmental quality or department of transportation may grant approval for the disposal or deposit of any material according to law.  (c) Any person convicted of willfully violating subsection (b) of this section is guilty of a felony punishable by a fine of not more than ten thousand dollars ($10,000.00), imprisonment for not more than five (5) years, or both. Any person convicted of recklessly, as defined by W.S. 6-1-104(a)(ix), violating subsection (b) of this section is guilty of a felony punishable by a fine of not more than five thousand dollars ($5,000.00), imprisonment for not more than three (3) years, or both. Any person convicted of criminal negligence, as defined by W.S. 6-1-104(a)(iii), in violating subsection (b) of this section is guilty of a misdemeanor punishable by a fine of not more than one thousand dollars ($1,000.00), imprisonment for not more than one (1) year, or both.  (d) As used in this section:  (i) "Hazardous materials" means a substance or material, including a hazardous substance, which has been determined by the United States secretary of transportation under title 49 of the Code of Federal Regulations to be capable of posing an unreasonable risk to health, safety and property and which has been so designated;  (ii) "Hazardous waste" means any material that is subject to the hazardous waste manifest requirements of the United States environmental protection agency as specified in 40 C.F.R. part 262;  (iii) "Marine pollutant" means a hazardous substance which is listed in appendix b, 49 C.F.R. part 172.101 and, when in a solution or mixture of one (1) or more marine pollutants, is packaged in a concentration which equals or exceeds:  (A) Ten percent (10%) by weight of the solution or mixture for materials that are listed in the appendix;  (B) One percent (1%) by weight of the solution or mixture for materials that are identified as severe marine pollutants in the appendix.  (iv) "Radioactive material" means any material having a specific activity greater than 0.002 microcuries per gram;  (v) "Specific activity" of a radionuclide means the activity of the radionuclide per unit mass of that nuclide. The specific activity of a material in which the radionuclide is essentially uniformly distributed is the activity per unit mass of the material.