Utah gears up to implement nation's lowest DUI limit New Year's Eve revelers in Utah may find themselves with more than a hangover as 2019 dawns: If they drink and drive, they could get hit by the newest and lowest DUI threshold in the nation

SALT LAKE CITY -- The United States' lowest DUI threshold takes effect this weekend in Utah.

Lawmakers in the state approved the 0.05 percent blood-alcohol limit in 2017, and Gov. Gary Herbert signed it into law. The change goes into effect Sunday.

Utah's old limit was 0.08 percent, the threshold in most states.

The National Transportation Safety Board supports the new limit, saying it would save many lives if adopted nationwide.

But critics worry it will punish responsible drinkers, hurt Utah's tourism industry and amplify the state's alcohol-unfriendly reputation.

The lower limit takes effect as Utah basks in the news that the U.S. Olympic Committee chose Salt Lake City over Denver as a future bid city, most likely for the 2030 Winter Olympics. State tourism officials say they're not concerned about the law driving away visitors.