It doesn't seem to be? From what I can tell, this is just formalising what we've had to self-declare with companies like IDT for years (not encoding a known toxin, pathogen, etc). Somebody correct my if I'm wrong, but it looks like there's now a requirement for companies to actually check the sequence, rather than take the researcher's word for it.

You don't need AI to generate known toxin or pathogen sequences (as these are already known).

And if AI could design novel toxins, this screening wouldn't catch those anyway.