Establishes the "Defining SEX Act"

HB 1779, titled the "Defining SEX Act," defines key terms in state law to establish that "biological sex" (male or female) determines legal references to "sex" or "gender" in existing statutes and administrative rules. It specifies that "gender," when used alone, must refer to biological sex - not gender identity, expression, or role - and clarifies that "gender identity" cannot replace "sex" in legal contexts. The bill directly affects how state laws and regulations interpret terms in areas like healthcare, education, and employment, requiring state agencies to align their rules with these definitions. It also includes a specific provision ensuring individuals with differences in sex development retain ADA protections under federal law.