Clensing what did you buy in california? You'll need to check with each state to see what the widths are, a truckers atlas might have it in, but you'll also need to know if you can get a permit in each state or do you run apportioned plates? Are you planning on taking an escort vehicle along with you empty to california? Also check to see what requirements california has for your semi, they might not let you in at all, and make sure you have all the oil leaks fixed if you go and your engine had better be spotless as well, nothing leaking anywhere and that includes what your hauling too and be prepared to be inspected, so have all the paperwork you need on hand and up to date, or are you planning on having someone else haul it back? If your doing it yourself, check to see what each state needs for equipment on hand, if your going over the rockies, you'll need tire chains. Where in california?