A bill aimed at cracking down on drunk driving has passed a state House subcommittee, although in a watered-down form.

Emma's Law, named after a 6-year-old Lexington County girl killed in a crash involving a drunk driver on New Year's Day 2012, now goes to the full House Judiciary Committee.

The amended version of the bill would reduce the number of convicted DUI first offenders who would be required to use an ignition interlock device, which would disable their vehicle from starting if their blood alcohol content measures too high.

Supporters of the measure are happy with movement on the bill, which had been held in subcommittee without a hearing for more than a year.

Speaking in favor of the legislation Thursday was the father of the girl killed, David Longstreet, who told lawmakers his daughter would be alive today if the measure was law.

Columbia Fire Chief Aubrey Jenkins also spoke for passage.

He recently lost his 3-year-old grandnephew in a crash involving a driver who allegedly was intoxicated.