Inclusion Criteria:  Provides written informed consent Stated willingness to comply with all study procedures and availability for the duration of the study Age > 18 years Previous diagnosis of Type 1 or Type 2 diabetes or pre-diabetes per American Diabetes Association (ADA) guidelines Inclusion in a part of any planned or approved DFC protocol  Exclusion Criteria:  An individual who meets exclusion criteria of the primary DFC protocol in which they are enrolled will also be excluded from participation in the biorepository program as well.