You can change your address with the DMV ;online or in person with a piece of mail with the correct address on it.
You don't notify the Secretary of State of an address change. Contact your DMV and the post office.
I believe you have 30 days, as in most states. Of course, it doesn't hurt to let them know immediately.
Ten days
Whenever you change your legal address or normal place of abode.
Well, honey, technically you're supposed to notify the DMV within 10 days of moving to a new address in California. But let's be real, the DMV isn't exactly known for being a stickler for deadlines. Just get it done sooner rather than later to avoid any unnecessary headaches, darling.
When selling your vehicle.
Notify the USCIS office. Sent a written notice of address change (Form AR-11).
yes
In the past I've used Returnpath.com
10 days
If you want to stop paying taxes on that vehicle I would notify them very quickly. It is to your benefit.
Sell or transfer your vehicle.