A person who is under the age of twenty-one shall not operate a motor vehicle while having an alcohol concentration, as defined under section 321J.1, of .02 or more. The motor vehicle license or nonresident operating privilege of a person who is under the age of twenty-one and who operates a motor vehicle while having an alcohol concentration of .02 or more shall be revoked by the department for the period of time specified under section 321J.12. A revocation under this section shall not preclude a prosecution or conviction under any applicable criminal provisions of this chapter. However, if the person is convicted of a criminal offense under section 321J.2, the revocation imposed under this section shall be superseded by any revocation imposed as a result of the conviction.
In any proceeding regarding a revocation under this section, evidence of the results of analysis of a specimen of the defendant's blood, breath, or urine is admissible upon proof of a proper foundation. The alcohol concentration established by the results of an analysis of a specimen of the defendant's blood, breath, or urine withdrawn within two hours after the defendant was driving or in physical control of a motor vehicle is presumed to be the alcohol concentration at the time of driving or being in physical control of the motor vehicle.
95 Acts, ch 48, §7
Referred to in § 321.12, 321A.17, 321J.4, 321J.5, 321J.6, 321J.9, 321J.12, 321J.13, 321J.15, 321J.16, 321J.20, 321J.25
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