Section 32-6-49.12
Use of alcohol while driving; when placed out of service; when disqualified.
(a) Notwithstanding any other provision of this article, or of existing law, a person may not drive, operate, or be in physical control of a commercial motor vehicle within this state while having any measurable or detectable amount of alcohol in his or her system.
(b) A person who drives, operates, or is in physical control of a commercial motor vehicle within this state while having any measurable or detectable amount of alcohol in his or her system or who refuses to submit to an alcohol test under Section 32-6-49.13, must be placed out of service for 24 hours.
(c) Any person who drives a commercial motor vehicle within this state with an alcohol concentration of 0.04 or more must, in addition to any other sanctions which may be imposed under this article, or under federal or state law, or rules or regulations of the department, be disqualified from driving a commercial motor vehicle under Section 32-6-49.11.
(Acts 1989, No. 89-878, p. 1759, §12.)