What date did Trinity College and University of South Dakota loose accreditation?

Neither Trinity College nor the University of South Dakota have lost accreditation.

* Trinity College (Hartford, CT): Maintains accreditation through the New England Commission of Higher Education (NECHE).

* University of South Dakota: Maintains accreditation through the Higher Learning Commission (HLC).

To check the current accreditation status of any institution, it's always best to consult the institution's website or the website of their regional accrediting agency.