A bill introduced in the Nevada Legislature would lower the threshold for courts to require DUI offenders to install ignition interlocks on their vehicles. The device tests a driver’s breath for alcohol consumption. If alcohol is detected, the vehicle won’t start. Under existing law, ignition locks are required of anyone convicted of felony drunken driving, or a misdemeanor for having a blood alcohol content of 0.18 or more. SB166, sponsored by Sens. Sheila Leslie of Reno and Mark Manendo of Las Vegas, would lower the threshold to a blood alcohol content of 0.15. Additionally, it would remove the authority of judges to exempt a person from having to install an ignition lock because of economic hardship. The bill was introduced Thursday and referred to the Senate Committee on Transportation.