Interesting proposal for sure, I wrote down a few comments when reading, mainly for the "Stakeholder Management (Differential Incentives)" part:

1. The second paragraph of "AGI Companies" seems to focus mostly on US companies.
2. Something to consider for the measures proposed for academia: this might drive academia away from the topic altogether, which does not seem ideal. Competition for funding is already taking a toll on researchers' time and well-being, adding another layer of bureaucracy (even if the goal is a good one) could be the last straw. Corporations have financial incentives to follow regulations, but academic researchers do not (apart from earning a living, which they could do more lucratively elsewhere anyway).
3. For the "non-research" part,  at which point does of the supply chain would one draw the line? For example, NVIDIA manufactures their chips through TSMC, TSMC uses lithography machines made by ASML, and ASML has 5000 suppliers according to their website (https://www.asml.com/en/company/sustainability/responsible-supply-chain).