Criteria for Applying The basic requirements you must satisfy to be selected are available here, but briefly, you must satisfy these critetia to be considered: Satisfactory completion of at least one full year at and current enrollment in a four year college or University (i.e. Sopohomore standing) in the United States. At least a 3.0 (out of 4.0) Grade Point Average with a balanced course load between science and non-science electives. See also: How To Apply The Deadline for applying Criteria for applying Tips for writing a good application Your Application Your Job as an intern Learn more about SIST in one of our Webinars!