My understanding is that anybody can do any type of electrical work (in homes), but certain type of electrical work needs to be certified. If your electrician isn't certified then a third party certifier has to certify the work after completion.
>>If your electrician isn't certified then a third party certifier has to certify the work after completion.
Even that has been outlawed sadly. You can't fit your own fuse board and get an electrician to just sign off on it anymore - there might be people who still do it and give you a document saying they've done the installation, but in general it's not a thing anymore.
Of course absolutely nothing stops you from doing it anyway, then having a general electrical inspection done. If anyone asks just say it was like that when you bought the house already.
It is the same in the US. The actual labor can be done by anyone, but a licensed electrician has to be willing to accept liability for it.
It is quite a racket in some towns, as some electricians will have an “expedited” relationship with the town’s inspectors, so you basically have to hire certain electricians if you want your project to move along smoothly. The electrician will come by and walk through for 5 min glancing here and there and sign the paper for $10k or $20k or $30k depending on size of the project.
Architects are the same way, a couple draftsmen to all the design and construction documents. Then, while on the way out the door to lunch, the architect gets their stamp and a sharpie out.
Not true everywhere in the US, this sort of thing is regulated at the state level.
Where I live, a homeowner is allowed to do their own electrical work. Must be permitted and inspected, though. When I've done big projects in the past, I've asked the inspector out at the start to ask for their advice -- gotten really good info that way.
Here in NM, you can do your own electrical work, but you have to pass an exam first. The exam is non-trivial.
There's a separate exam for solar installs. I took and passed that, but given that it is open book (you get the NEC book) and covers "only 3 sections of the NEC"), it was suprisingly hard.
