<P> Like every other state in the United States, driving under the influence is a crime in Kansas, and is subject to a great number of regulations outside of the Liquor Control Act . Kansas's maximum blood alcohol level for driving is . 08% for persons over the age of 21 and . 02% for adults under the age of 21 and minors . </P> <P> Ordinarily, DUI is a misdemeanor in Kansas, although the third DUI conviction becomes a felony . Refusal to take a chemical test (i.e. breathalyzer) when so requested by a law enforcement officer who has probable cause will result in a one - year suspension of the suspect's driver's license . </P> <P> In response to the National Minimum Drinking Age Act in 1984, which reduced by 10% the federal highway funding of any state which did not have a minimum drinking age of 21, the Kansas Legislature raised the drinking age from 18 to 21, effective January 1, 1985 . Previously, the drinking age for CMB was 18 . Persons under 21 are prohibited from purchasing or possessing any type of alcohol, from consuming alcohol for anything other than religious or prescribed medicinal purposes, or from having a blood alcohol level of more than . 02% . There is exception for parents wishing to provide their own child CMB under K.S.A. 41 - 727 (e). </P>

What is the legal age to drink in kansas