Speeding Conviction Code

What is the conviction code for speeding? The most common conviction codes for speeding are the SP30s which is “Exceeding statutory speed limit on a public road” and the SP50 which is “Exceeding speed limit on a motorway” however, if you are unsure which speeding conviction you have, it will say on the paper part of your licence.
02/01/2012 15:14:32 Mike