Mo. Rev. Stat. ยง 577.599
577.599 Failure to comply with ignition interlock device requirements โ penalty.
577.599. Failure to comply with ignition interlock device requirements โ penalty. โ 1. A person commits the offense of failure to comply with ignition interlock device requirements if he or she knowingly operates a motor vehicle that is not equipped with a functioning certified ignition interlock device in violation of a court, or department of revenue, order to use such a device.
2. The offense of failure to comply with ignition interlock device requirements is a class A misdemeanor.
(L. 2014 S.B. 491) Effective 1-01-17