HB 189 amends various sections of the Texas Election Code to consolidate the reporting and filing requirements for political contributions, expenditures, and campaign treasurer appointments. The bill standardizes the process by requiring all campaign treasurer appointments, changes, and financial reports from candidates and political committees to be filed with the Texas Ethics Commission (TEC), removing the current system in which filings are split across local and state entities based on office level. The bill also specifies requirements for electronic filing, maintenance, and access to these records, and authorizes the TEC to streamline compliance through updated rules.