I have been eagerly waiting for this since it was first announced and my good friend Daniel let me know this morning (via our family and friends Discord server) that it was finally available here in California. It is not like I have gone much of anywhere for the last 261 days, but it always good to keep aware of what is happening around you.
There is nothing to install. Exposure notifications is built into the iPhone. Just follow the steps below to activate.
Once you activate CA COVID Notify, it does all the work. All you do is keep your bluetooth on. You will only receive alerts if you were in close contact with someone who tests positive for COVID-19. Your privacy is protected as your identity is not known and your location is not tracked.