The way I took it was any place that is not in city limits, they used farms and mountains as an example.

My parents live near lake Arrowhead, a popular vacation spot, and they are in a town but they don't need licenses for guns or business.

The sources all have different info but I did come across this gem:

"On October 13, 2007, California enacted AB 1471. This controversial[19] law requires that, effective January 1, 2010, semi-automatic handguns be equipped with microstamping technology in order to be listed in the roster of handguns certified for sale. When such a pistol is fired, the microstamping mechanism will imprint each cartridge case with a microscopic array of characters that will uniquely identify the gun that fired it.[20][21]"

Most of the laws apply to automatic weapons and sawed off shotguns. "It is illegal to possess an automatic firearm or a short-barreled shotgun or rifle without permission from the California Department of Justice; such permission is generally not granted.[18]" Other than that you can have guns in Kali for 30 days before you are required to get registered.

As for concealed carry: California[12][13] is a "may issue" state for concealed carry. A license to carry a concealed firearm may be issued or denied to qualified applicants at the discretion of the county sheriff or municipal police chief.[14] California does not recognize concealed carry permits issued by other states.

Outside of those areas it is not regulated but I can't find the exact text and, sweet Jesus, theres a lot of reading to do. I guess it is worth noting that these laws only apply to Citizens acting legally and those acting lawfully (not legally) fall under the rule of the 2nd Amendment.

Wow, all I can say is wow.  I hear about this, but never thought it would actually be implemented, just seemed, well, stupid to me.  The reason I say stupid is because think about how many handguns don't have microstamping tech on them, well lets use those for a crime.  How about new handguns, bought by person A, stolen and reported as such, then used by person B in a crime.  I could keep going on, it just seems so easy to circumvent and seems like a burden to place on the firearm manufacturer.

That's another thing, why would I register my firearm with the state?  It is not their business what guns I own, how many I own and for what purpose I own them.  I am just so glad I moved out of California.