ISM and Wireless energy

It looks like all those wireless energy chargers for small devices and cars use LC resonant circuits at Non-ISM frequency band (100 KHz for Qi standard 19.5 KHz for PlugLess Energy). I've also red that LC circuits in resonnance is équivalent to an antenna. So my question is, aren't they illegal?

I am new in electronics and know very little about RF circuits, so sorry if my question might be stupid.

You are talking about frequencies much lower than radio, TV or other communications so there is no interference to anything.
Besides, the energy is transferred over a very short distance using magnetic waves, not radio waves.

Well when I look to the spectrum allocation, I see that these frequencies are used for other purposes.
https://upload.wikimedia.org/wikipe...locations_Chart_2011_-_The_Radio_Spectrum.pdf

"Besides, the energy is transferred over a very short distance using magnetic waves, not radio waves." I have read that LC circuits in resonnance are used in Radio as an antenna. So I was wondering that they might emit an électromagnetic wave if there is no receiving coil in front of the emitting coil. Plus as a car needs high power (3.3KW or 6.6KW), those radiation might be very high. Maybe, I am completely wrong, but this is why ask.

The antennas for these very low frequencies must be very long.
The spacing between the transmitting and receiving coils is very small, much less than 1mm so that magnetic induction not radio waves transfers power like a transformer.
The cores of the coils might be u-shaped to focus the power between them with little external radiation.

There's are EMC and other regulations restricting the magnetic far field emitted by devices operating in 100 kHz range. I would expect that e.g. Qi chargers have no problems to keep the present regulations. A wireless car charger operating at a kW power level could be a different thing.

As already explained, due the small size of the inductive couplers relative to the wavelength, only a very small amount of power is radiated as electromagnetic wave. If you try DXing (reception of distant radio stations) in the long wave band, you'll nevertheless become aware of inductive chargers in the vicinity. It's forseeable that the proliferation of inductive chargers will contribute to the ever-present "electro smog", in so far some pompous plans like the said kW chargers should be probably better not implemented, respectively the existing EMC regulations not relaxed for their promotion.

I cannot see it being any worse than any of the electronic welders that run multi kilowatt switching supplies producing an arc at the end of long cables.

How any of that passes EMC radiated emission levels, I have no idea.