C.A.P. decal

Apparently, there are two different stickers for a C.A.P. vehicle. The factory one like in my first photo, and one that comes in the add-on kit (which I just remembered I had!). They're not even the same size. The add-on one is bigger and worded different. I don't remember this kit being required on used cars back then (and I had a smog license in the late '70's). Was this totally optional to satisfy the tree-huggers?

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