What precautions you can take to have a safe, happy holiday December includes some of the most celebrated days of the year, but they can also be the most dangerous Tags: ORLANDO, Fla. (Ivanhoe Newswire) – December is National Impaired Driving Prevention Month. According to the National Highway Traffic Safety Administration, in December 2018, 839 people died in alcohol-related crashes, and 35 of them were on Christmas day. As the holiday parties get going, it is important to take precautions to make sure this holiday stays happy. December includes some of the most celebrated days of the year, but they can also be the most dangerous.