An update pending on the Code of Conduct citation: The direct link showing on the citation below no longer directly points to the Code of Conduct. You can find it listed on the Administrative Code Rules of Practice.
https://texreg.sos.state.tx.us/public/readtac$ext.ViewTAC?tac_view=5&ti=22&pt=34&ch=781&sch=B&rl=Y
Reference Page