Mothers against Drunk Driving will be at the State Capitol Tuesday.
Members are advocating for a bill that would expand requirement for ignition interlocks for convicted drunk drivers.
In Iowa, ignition interlocks are required for all repeat convicted drunk drivers and first-time offenders with a blood alcohol concentration of .10 or greater.
A bill in the House and another in the Senate would expand the use of ignition interlocks. It would require the system for first-time convicted drunk drivers at a .08 BAC or greater who drive while their license is suspended.
A vote is pending in both the House and Senate.
Twenty states have similar laws.