Except as otherwise provided, whenever in this Act reference is made to an offense which is a violation of a provision of this Code, such reference shall be deemed to include offenses under any local ordinance, any federal law, any law of another state or any local ordinance of another state, substantially similar to such provision of this Code.

§ 46.2-341.24. Driving a commercial motor vehicle while intoxicated, etc.

It shall be unlawful for any person to drive or operate any commercial motor vehicle (i) while such person has a blood alcohol concentration of 0.08 percent or more by weight by volume or 0.08 grams per 210 liters of breath as indicated by a chemical test administered as provided in this article; (ii) while such person is under the influence of alcohol; (iii) while such person is under the influence of any narcotic drug or any other self-administered intoxicant or drug of whatsoever nature, or any combination of such drugs, to a degree which impairs his ability to drive or operate any commercial motor vehicle safely; or (iv) while such person is under the combined influence of alcohol and any drug or drugs to a degree which impairs his ability to drive or operate any commercial motor vehicle safely.

B.

It shall be unlawful and a lesser included offense of an offense under provision (i), (ii), or (iv) of subsection A of this section for a person to drive or operate a commercial motor vehicle while such person has a blood alcohol concentration of 0.04 percent or more by weight by volume or 0.04 grams or more per 210 liters of breath as indicated by a chemical test administered in accordance with the provisions of this article.