I know I can install a GFCI outlet in the home run section of a circuit and install 3 pronged receptacles in anything downstream, even if they are ungrounded.
What if instead of installing the GFCI outlet at the first box, I install a GFCI breaker in the panel? Am I still in code compliance? I have seen very similar questions asked and answered, but not this question, not directly.
Bonus points if you can show me where to I can find this out myself in the code- either the NEC for the US or for any given state - e.g. Minnesota.
UPDATE: My question was answered, but I thought I'd add to it. I'll go the AFCI breaker and GFCI outlet method on the circuit in question. It begs the question why not switch out all circuits as AFCI? Why one? There's probably no good reason but it's lower priority so it will happen later, and i will make things safer but also be a learning experience. My panel probably isn't big enough to switch them all out. In fact the breaker in question is on the left side and if i switched it out, might just clear a plastic mount holding the neutral bar in place, or it might not. I suppose I can switch it out with one on the other side.
If it makes it, the wires are still tight and the white neutral that I'd feed into it is really short so I'd have to extend it. I think all this is doable but that's where I'm sitting.
I tested the outlets I want to change as to which is on which circuit. My upstairs is fed by three circuits. The 2 pronged are all on the same one so that's handy. My kitchen on main has two 2 prongs too, so I'll do the GFCI trick there. My bedroom has one 2 prong, and besides that, everything in the house is three pronged. There's a supposedly grounded duplex set of 4 outlets upstairs on it's own circuit which the tester indicated had reversed neutral and hot, so I'll fix that up. This process started by me wanting to make the outlets more aesthetically pleasing but it's expanded into me learning about electrical wiring and doing minor improvement. I wonder what's the story there. I inspected all this tonight but haven't opened boxes up (for all these outlets in question) so we'll see what we see. I think installing an AFCI is a good idea in theory and I ordered what I think is the correct one on Amazon but given the circumstances is lower priority.
The photo below is where I removed the breaker in question temporarily.
If anyone has any elder wisdom, I'm all ears and grateful.