(a)      A person may not cause the death of another as a result of the person's negligently driving, operating, or controlling a motor vehicle or vessel while the person is impaired by a controlled dangerous substance, as defined in § 5-101 of this article.

      (b)      A violation of this section is homicide by motor vehicle or vessel while impaired by a controlled dangerous substance.

      (c)      A person who violates this section is guilty of a felony and on conviction is subject to imprisonment not exceeding 3 years or a fine not exceeding $5,000 or both.

      (d)      This section does not apply to a person who is entitled to use the controlled dangerous substance under the laws of this State.