(1)  It is unlawful for any person to drive or otherwise operate a vehicle within this state who (a) is under the influence of intoxicating liquor; (b) is under the influence of any other substance which has impaired such person's ability to operate a motor vehicle; (c) has an alcohol concentration of eight one-hundredths percent (.08%) or more for persons who are above the legal age to purchase alcoholic beverages under state law, or two one-hundredths percent (.02%) or more for persons who are below the legal age to purchase alcoholic beverages under state law, in the person's blood based upon grams of alcohol per one hundred (100) milliliters of blood or grams of alcohol per two hundred ten (210) liters of breath as shown by a chemical analysis of such person's breath, blood or urine administered as authorized by this chapter; (d) is under the influence of any drug or controlled substance, the possession of which is unlawful under the Mississippi Controlled Substances Law; or (e) has an alcohol concentration of four one-hundredths percent (.04%) or more in the person's blood, based upon grams of alcohol per one hundred (100) milliliters of blood or grams of alcohol per two hundred ten (210) liters of breath as shown by a chemical analysis of such person's blood, breath or urine, administered as authorized by this chapter for persons operating a commercial motor vehicle. 

(2) (a)  Except as otherwise provided in subsection (3), upon conviction of any person for the first offense of violating subsection (1) of this section where chemical tests provided for under Section 63-11-5 were given, or where chemical test results are not available, such person shall be fined not less than Two Hundred Fifty Dollars ($250.00) nor more than One Thousand Dollars ($1,000.00), or imprisoned for not more than forty-eight (48) hours in jail or both; and the court shall order such person to attend and complete an alcohol safety education program as provided in Section 63-11-32. The court may substitute attendance at a victim impact panel instead of forty-eight (48) hours in jail. In addition, the Department of Public Safety, the Commissioner of Public Safety or his duly authorized agent shall, after conviction and upon receipt of the court abstract, suspend the driver's license and driving privileges of such person for a period of not less than ninety (90) days and until such person attends and successfully completes an alcohol safety education program as herein provided; provided, however, in no event shall such period of suspension exceed one (1) year. Commercial driving privileges shall be suspended as provided in Section 63-1-83.