It is illegal for a person under 21 years of age to drive with… Posted on July 27, 2013 by davepoobond Leave a comment It is illegal for a person under 21 years of age to drive with a blood alochol concentration (BAC) that is _____ or more. One hundredth (0.01) of 1% Five hundredths (0.05) of 1% Eight hundredths (0.08) of 1% 500% View Results Loading ... Share this:EmailFacebookTwitterMoreRedditTumblr Related Leave a Reply Cancel reply This site uses Akismet to reduce spam. Learn how your comment data is processed.