Many Autistic adults, adolescents, and children identify as LGBTQIA+. Furthermore, research shows that transgender and gender diverse individuals are 3 to 6% more likely to be diagnosed with autism. Professionals in the field of applied behavior analysis are in a unique position to offer support and affirming services to transgender and gender-nonconforming (TGNC) clients, students, supervisees, and colleagues, given the multiple barriers that TGNC people in the United States experience overall. Participants will gain an understanding of the purpose of engaging in affirming care serves, learn general best practices for Trans and Gender-Non-Conforming (TGNC) clients and learn ways to assess one’s own practices toward cultivating affirming practices.