JEFFERSON CITY -In the United States, Cinco de Mayo has become synonymous not only with tacos, sombreros, and piñatas, but also with margaritas, tequila, and beer. With alcohol playing such a big part in these festivities, it's no surprise that impaired driving is a big concern on May 5.The Missouri Coalition for Roadway Safety wants to remind partygoers that drunk driving should never be part of your Cinco de Mayo plans. Always designate a sober driver."Some people have this misconception that they can drink a little, and drive safely," says Leanna Depue, chair of the Missouri Coalition for Roadway Safety's executive committee. "The only safe driver is a completely sober driver."In 2013, one person was killed and 12 seriously injured in substance-impaired driving crashes on Cinco de Mayo (6 p.m. May 3, 2013 to 5:59 a.m. May 6, 2013). This indicates that people aren't planning ahead. Here's the worst part - these impaired driving deaths are preventable. You can have a safe and happy Cinco de Mayo by taking a few minutes ahead of time to get a plan together. Law enforcement is always on the lookout for impaired drivers, and those who are caught will be arrested. In many jurisdictions refusing a sobriety breath test can result in enhanced penalties, including immediate loss of your driver's license. If you are going to drink at all on Cinco de Mayo, designate a sober driver.For more information, visit http://www.savemolives.com/ or Facebook and Twitter at Save MO Lives. Arrive Alive.