to states to carry out the changes. NHTSA, which oversees highway safety as a federal regulator and analyzes traffic crash data, said it would work with any state that wants to pursue a lower BAC standard to gather further information on that approach. At Tuesday's meeting, the safety board also championed laws allowing police to confiscate a motorist's license at the time of arrest if the driver exceeds a BAC limit, or refuses to take the BAC test. Some 40 states already use the administrative tool, which the NTSB believes is effective because it is swift and immediate. And the board recommended more widespread use of passive alcohol sensors, which police can use to sniff the air during a traffic stop to determine the presence of alcohol. The sensor is capable of detecting alcohol even in cases where the driver has attempted to disguise his breathe with gum or mints. If the sensor alerts, it is grounds for more thorough testing. The NTSB recommended last December that states require ignition interlocks for all DUI offenders and said states should improve interlock compliance. Tuesday's recommendations were timed to coincide with the deadliest alcohol-related crash in U.S. history. On May 14, 1988, a drunk driver drove his pickup the wrong way on Interstate 71 near Carrollton, Kentucky. The truck hit a school bus, killing 24 children and three adults. More than 30 others were