“It was very difficult to get .08 in most states so lowering it again won’t be popular,” Adkins said. “The focus in the states is on high (blood alcohol content) offenders as well as repeat offenders. We expect industry will also be very vocal about keeping the limit at .08.”
Even safety groups like Mothers Against Drunk Driving (MADD) and AAA declined Tuesday to endorse NTSB’s call for a .05 threshold. The National Highway Traffic Safety Administration, which sets national safety policy, stopped also short of endorsing the board’s recommendation.
“NHTSA is always interested in reviewing new approaches that could reduce the number of drunk drivers on the road, and will work with any state that chooses to implement a .05 BAC law to gather further information on that approach,” the safety administration said in a statement.
The board recommended NHTSA established “incentive grants” designed to encourage states to adopt the lower threshold.
A study by the Insurance Institute for Highway Safety has estimated that 7,082 deaths would have been prevented in 2010 if all drivers on the road had blood alcohol content below .08 percent.
The lower threshold was one of nearly 20 recommendations made by the board, including that states adopt measures to ensure more widespread use of use of alcohol ignition interlock devices. Those require a driver to breathe into a tube, much like the breathalyzers police ask suspected drunken drivers to use.
The board has previously recommended states require all convicted drunken drivers install the interlock devices in their vehicles as a condition to resume driving. Currently, 17 states and two California counties require all convicted drivers use the devices.
However, only about a quarter of drivers ordered to use the devices actually end up doing so, the board said. Drivers use a variety of ways to evade using the devices, including claiming they won’t drive at all or don’t own a vehicle and therefore don’t need the devices, the board said.