According to Official Guinness Records,
The fastest 30 m on a scooter by a dog was achieved in 20.77 seconds, and was achieved by Norman the Scooter Dog, owned by Karen Cobb (USA), at All Tournament Players Park, in Marietta, Georgia, USA, on 12 July 2013.
For a complete list of 2013 records, please visit 2013 Guinness Records in United States.