In this thread, here's what I found frustrating.
-I can't always tell who's a cop/LEO who's answering unless I happen to recognize a particular screen name. No offense to those of you I happen to know have been, but may not be currently in L.E., or an attorney;
-It wasn't until post #17 where I actually saw someone reference the actual law, Vehicle Code 5200(a) as support to answer the original poster's question;
-and try to remember the original intent of this sub-forum which states "Ask the experts in Law Enforcement". There are already forums to ask the people/experts who are NOT in law enforcement.
-On the other hand, the OP didn't actually ask what is the definitive law. The question(s) were somewhat vague as in, "Is this going to be a problem?". The wording of that question seems to invite more of a discussion for any or everyone's opinion vs. a definitive by-the-book-literal-law answer. (I think I just apologized for my earlier comment, but without totally taking it back!);
-to me, if it were a perfect forum-world, an OP would poise a question. A

LEO then responds. Then the discussion/free-for-all takes off.
If I were to answer the OP's question, I'd first need to know what state the OP is in. Not just "East Coast". I have a "cheat sheet", meaning subject to some error, which indicates what states issue 2 plates vs. only 1 plate. If the OP's state issues two plates, then both will need to be mounted, front & rear, while operating in California, not whether it's enforced or required in the OP's home state, where-ever that is. Is the OP correct about the home state not requiring a front plate needing to be mounted? I might need to research that statement, too, just to be thorough, even though we're speaking of California Vehicle Code here.
-My earlier comment did get a rise from some of you though didn't it
