A committee composed of members from each chamber of the legislature appointed by the respective presiding officers. Joint committees are normally created by a special proclamation issued by the speaker and lieutenant governor for the purpose of studying a particular issue or group of issues when the legislature is not in session. Joint committees are rarely, if ever, created during a session, and house and senate rules do not permit bills and resolutions to be referred to a joint committee.

[Source: Texas Legislative Glossary: Texas Legislative Council for the 85th Legislature, Prepared by the Research Division of the Texas Legislative Council]