The barswere packed this New Year's Eve.
It's one of the busiest nights of the year for the Highway Patrol and one of the most dangerous for drivers on the road.
Officers are stopping anyone who appears to be intoxicated.
"The simple ones are the weaving out of your lane, straddling lanes," said CHP Officer Michael Bradley.
Moving too slow, braking erratically or braking several feet ahead of the stop light are also signs someone's had too much to drink.
"Failure to turn their headlights on is a very simple one," said Officer Bradley.
Highway signs are lit up toremind drivers to call 911 to report drunk drivers.
"What we want you to do is get the direction you're at, current location, type of car and hopefully the license plate number," said Bradley.
Bartenders are also paying close attention andrefusing service to those who've obviously knocked back one too many beers.
"Of course you never want anyone sleeping at the barwith their head down at the bar, anyone that's walking and stumblingor slurring their speech," says Steve Jolley, a bartender at Streets of London in Midtown.