This is only a guess.
But looking closely at your buildsheet. I am gonna guess it's a federal emissions car. I don't see any remnents of markings in the last box which is emissions pkg area. row 9 , section N .. all the way to the right ( edit - maybe thats fresh air box markings would be and not emissions pkg ????? )

Does the sheet show exhaust tips or not?
As I don't think tips were avail on CA cars