I work on the construction side building dealerships for all brands. The charger requirements change daily (or so it seems) depending on the brand. We have one project that charging requirements have changed three times during construction.
that aside, the auto manufacturers are starting to tell us to install battery storage rooms inside the dealerships. When we explain what the fire codes require for lithium ion battery storage they go quiet and drop the requirement. This makes me think that the world (or local fore departments)is not ready for piles of old lithium ion batteries.