In most situations arising in employment, housing, mortgage services and places of public accommodation,
it will not be appropriate to request documentation of an individual’s gender identity. In the limited
circumstances where it is necessary, an individual’s gender identity may be demonstrated by any evidence that
the gender identity is sincerely held as a part of the person’s core identity. The evidence that the Commission
will review in cases alleging gender identity discrimination includes, but is not limited to, medical history,
medical/psychiatric care or treatment of the gender-related identity; consistent and uniform assertion of the
gender-related identity or any other evidence that one’s gender-related identity is sincerely held as part of one’s
core identity; provided, however, that gender-related identity shall not be asserted for any improper purpose.