Is there no simple chart for it?
Vassar has a “general policy” for AP/IB credits.
https://registrar.vassar.edu/academic-information/transfer-credits.html
No handy dandy chart, but here is the first year handbook, so you can see AP credit policy by department. Vassar allows a max of 4 test based pre-matriculation credits for AP/IB. https://firstyearhandbook.vassar.edu/docs/pdfs/2018-19/2018-Vassar-First-Yr-Hdbk-v1.pdf
RW1
4
Actually down to 2 now for AP/IB, I believe.
Then they haven’t updated their website.