Do most state parks have a 30-foot length limit?

[susanka]

Hi, everyone. We're looking at a 31'11" class A and have been told that most state parks have a 30-foot limit. I can call all the states to ask, of course, but am hoping some of you with lots of RVing experience can tell me if that is true, or to what extent it is. Thanks very much!

[K_Charles]

In more them 30 years we have only see a length limit one time.