Certifications are usually earned from a professional society or educational institute, not the government. However, a government agency can decree a certification is required by law for a person to be allowed to perform a task or job.
When The Vampire Diaries premiered on The CW Television Network, on September 10, 2009, it attracted the largest audience of any series since the network began in 2006.
Now there is a spin-off called The Originals, that goes into depth about the original vampire family from The Vampire Diaries. On February 16, 2010, The CW announced that it had renewed the show for a second season, which premiered on September 9, 2010. On April 26, 2011, The CW renewed the show for a third season.