CommodoreAmiga
Well-Known Member
I have no experience with EPA testing, so this is all just pulled from my cake-area....All we can do is speculate, but again, being an optimist, I'm wondering if EPA questioned Rivian's range/efficiency claims and wanted additional data to back up claim that Rivian had not collected, or collected sufficiently according to EPA. I have never submitted a system for EPA certification, but assume there is likely some extrapolation of real world test data which EPA would want keep as minimal as possible. Interpolation is generally safe, extrapolation can get dangerous quickly and the EPA (and US GOV for that matter) are risk adverse by nature.
However, it has been my impression that the EPA testing did rely/trust the manufacturers to mostly self-regulate. That's why we saw manufacturers like VW game the system, and Tesla's EPA results are so much more "optimistic" compared to other brands.
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