Slugger.......
Try here:
http://www.playnsa.com/html/nsa_softball.html
Click on Umps Corner......then on Playing Rules.....
You need Adobe Acrobat to read them......I believe the Baserunning rules are in Rule 8 in NSA......(make sure you are looking at the slow-pitch rules).
Hope this helps.....
Joel
BTW.......Dakota......how did you do that?