Here is what I found out for you:
"Basically, there is no difference in difficulty or distances in a Regional event. Regionals are for Started and Intermediate levlel dogs. If you get 4 passes (title) in a certain timeframe, you will get invited to run in a Regional.
Example : You get 4 Started passes and thus your Started (SR) title in a certain timeframe. You will be invited to run in the Regional IN THE STARTED DIVISION. This is regardless of whether you have any Intermediate passes or not. You will run under Started Rules. Many people who have a Started title and are invited to the Regional will have already gone on to Intermediate. For this reason, they will not take advantage of the Started Rules (having the dog on lead) and the dog will break ==== No Regional Ribbon. They need to take advantage of all of the Started rules.. ... Same goes with Intermediate (no lead etc), but they should USE THE RULES to their adbvantage -- that's what the rules are for.
The Regional Ribbon is a vey cool Red - White & Blue Ribbon and a cool "Brass Band" instead of "Aluminum"."