Relating to the operation and administration of and practices and procedures related to proceedings in the judicial branch of state government, including court security, court documents and arrest warrants, document delivery, juvenile boards, constitutional amendment election challenges, record retention, youth diversion, court-ordered mental health services, the powers of the Texas Supreme Court, and jurors; increasing a criminal penalty; authorizing fees.

HB 16 reorganizes Texas judicial districts and clarifies court jurisdictions across multiple counties. It creates the 490th Judicial District for Brazoria County (effective September 2026) and modifies existing districts, such as expanding the 274th District's jurisdiction in Comal, Guadalupe, and Hays counties. The bill also specifies that district clerks handle most civil/criminal cases while county clerks manage Class A/B misdemeanors, juvenile matters, and probate. It includes procedural changes to court operations but does not establish new substantive law. This is a procedural bill focused on administrative structure, not policy outcomes.