 Background Motor vehicle accidents cause significant ailments and death in our communities and driving under the influence of various psychoactive substances including ethanol (alcohol) have been associated with the incidences of vehicular crashes. In this paper a case study is presented in which the prevalence of alcohol-impaired driving is estimated for the general population of long distance commercial drivers in the cities of Aba and Umuahia.  Methods Simple random sampling was used to identify drivers as such classified for this research. Random breath alcohol concentration tests were performed in the month of April, 2018 on 160 drivers.. The Chi – square statistics was used to test the hypotheses for alcohol consumption at 0.05 level of significance while the student T-test was deployed for prevalence of impairment.  Results In Aba, 35% had a detectable quantity of alcohol in their breath while 8.75 percent of the drivers tested positive to alcohol but below the BAC limit set for the country, sample from 7.5% of drivers where very close to the legal drink drive limit and could be borderline. Sample from 18.75% of the drivers were at or above the legal drink limit at which drivers are recommended not to drive. In Umuahia, 35% had a detectable quantity of alcohol in their breath. The results showed that 10 percent of the drivers tested positive to alcohol but below the BAC limit set for the country while sample from 10% of drivers where very close to the drive limit and could be borderline. Samples from 15% of the drivers were at or above the legal drink limit at which drivers are recommended not to drive. There is a statistically significant relationship between age of driver and rate of alcohol consumption. None of the drivers interviewed in both cities know the Blood Alcohol Concentration (BAC) limit of the country.  Conclusion The research concluded that alcohol consumption was rampant among long distance commercial drivers in the cities of Aba and Umuahia in Abia State, Nigeria while alcohol impaired drivers are not prevalent in both cities.

Keywords : Bac; Bra; DUI; Alcohol Intoxication; Alcohol Impairment.