Hello and welcome to the Forum, Doug. First of all -- either you or I should fill out the location blank in your profile on the registration page. You do it - and it'll be something like Austin, Texas, right? If I do it I'll probably put you in Groin Injury, Indiana. You choose. . .

Second of all - the SCTA rulebook is not available on line. It's a major source of revenue for the SCTA - that's one reason they do not publish it online. They're $10 each, and we always suggest that you buy three of 'em at the beginning -- one for the shop, one for the coffee table in the living room, and one for the back of the toilet for when you're in there to study.
You're always welcome to ask any of the Forum folks for help understanding any of the rules, but keep in mind that what you'll get back is "unofficial" in that it's not from an SCTA official. If you want a "written in stone" (so to speak) answer about a rule - it's easy enough to contact the chairperson of whatever section of the rules you want to be helped with. And then, when you do that, consider printing and saving the response just in case you get into a situation where something on your vehicle is questioned. You'll have some proof of why you did what you did.
But whatever all of this is -- for now it's Merry Christmas from everyone on this website, and Nancy and me, too.
Jon a/k/a Seldom Seen Slim