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Some companies are working on 10 centimeters.

"Satellite" images on maps are often not from satellites but rather planes or drones.

I guess with this technique you could do ML image synthesis guided by SAR satellites - that way you could sort-of look through clouds from space, as long as you don't mind the image being largely fictional.

I'm having trouble finding citations on the specific law, but this website states that the US has capped satellite imagery for civilian use at 0.31 m

https://pubs.acs.org/doi/10.1021/acs.est.0c02365