Since the best available firmware is open source I don’t see any way of imposing limits on it.
The printer itself doesn’t even know what it’s making since it’s reading directions one by one, so any limits would need to be implemented at a slicer level, which are also basically all open source (at least any worth using).
The only way I could see it working would be mandating that all printers sold in the US come with software checks against it and be non reflashable, but considering a new driver board that would be able to drive 95% of printers is about $25 it is nothing more than screaming into the void.
Fosscad.org has a good zip archive, I still see some from time to time on printables aswell.