Minimum TOEFL score for Caltech?

Is there a minimum TOEFL score requirement for international students for undergraduate studies at Caltech?
I have read on some forum that there is a requirement, but I’m not sure if it’s correct.

They don’t say on their website, but if you score 100+, you can check that off the to-do list, IMO.

I agree. 100 is the “highest minimum” I’ve seen recommended by any college.