By Keith Laing - 07/03/13 08:53 PM EDT
Foxx said it was important for holidays travelers to be mindful of other revelers who might be celebrating outdoors.
"Whether you’re driving to a cookout or to catch the fireworks, please take care to drive safely and to celebrate responsibly," he wrote. "Millions of families will be celebrating outside, making it especially important to focus on the road."
Foxx was sworn in as the 17th U.S. Transportation secretary on Tuesday afternoon.
He has taken over for former Rep. Ray LaHood (R-Ill.), who had served as Transportation secretary since 2009.