Relating to parental rights in public education and prohibiting instruction regarding sexual orientation or gender identity for public school students.

HB 4002 requires Texas public school districts to establish procedures for parents to file complaints about school policies affecting their child's education. It mandates that districts resolve parental complaints within 30 days or provide written explanations, and allows parents to sue if unresolved (with potential attorney fees). The bill also requires schools to notify parents about changes to mental/emotional/physical health services or learning environment support, and prohibits school forms that prevent staff from informing parents about these issues. It directly affects parents, students, and school districts by expanding parental notification rights and legal recourse in education matters. The bill does not ban specific content but focuses on procedural requirements for parental involvement.