Does Iowa have a zero tolerance law?

In Iowa, the legal limit for OWI for those over age 21 is a blood alcohol content of 0.08 percent. For a person under the age of 21, however, the legal limit is 0.02 percent. The State of Iowa calls this a “zero tolerance” law, and although that’s not strictly accurate, it’s pretty close. … If the individual’s BAC was . Aug 31, 2016