It took awhile to find out but the DD code on the front of the new Tennessee license stands for document discriminator. The 16 digit code is a new security measure added to each driver's license in the Volunteer State. New holograms on the front and bar codes on the back of each state issued card as well as the DD code have been put in place by the Department of Safety and Homeland Security.
Lockheed Martin Biggest US Government Contractor in 2015. WASHINGTON â The Pentagonâs top 100 contractors raked in $175.1 billion in obligated contracts in 2015, down slightly from 2014âs total of $177.6 billion, according to government figures released this week.
Bechtel is currently the largest U.S.-based construction firm. The construction and engineering company with headquarters in San Francisco was the only North American company to make it into the top ten list of the the worldâs biggest construction contractors, based on 2012 revenue.