It's a little bit difficult because a lot of these might not go with the the gold standard in the US, which is UL. But then there's ETL as kind of lower-cost alternative that claims to test to UL standards. Some go with TUV from Germany.
https://www.tuv.com/usa/en/electric-vehicle-charging-system-testing.html
TUV would be another one Id trust.
We've got to put all our stuff through ALL of that.
Costs the company about 1.2M a year for our 300 products to keep it all going. A total shakedown that has to stop.